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#48 by N. J. A. Sloane at Wed Jan 05 15:26:28 EST 2022
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#47 by Michael S. Branicky at Wed Dec 22 21:12:55 EST 2021
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#46 by Michael S. Branicky at Wed Dec 22 21:12:50 EST 2021
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| PROG
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(Python)
segments = [6, 3, 4, 4, 4, 5, 5, 3, 7, 5]
def a(n): return sum(segments[int(d)] for d in str(n))
print([a(n) for n in range(80)]) # Michael S. Branicky, Dec 22 2021
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| STATUS
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proposed
editing
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#45 by Stefano Spezia at Sat Dec 18 16:10:36 EST 2021
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#44 by Stefano Spezia at Sat Dec 18 16:10:17 EST 2021
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| CROSSREFS
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Cf. A350177 (histogram).
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| STATUS
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proposed
editing
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#43 by Michel Marcus at Sat Dec 18 05:49:06 EST 2021
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#42 by Michel Marcus at Sat Dec 18 05:48:41 EST 2021
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| KEYWORD
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nonn,base,changed
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| STATUS
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proposed
editing
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Discussion
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| Sat Dec 18
| 05:49
| Michel Marcus: kwd base since we are writing integers in base 10
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#41 by Stefano Spezia at Fri Dec 17 14:28:42 EST 2021
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Discussion
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| Fri Dec 17
| 17:26
| Bartlomiej Malarz: Yes, the table is ok, thank you.
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#40 by Stefano Spezia at Fri Dec 17 14:28:31 EST 2021
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| MATHEMATICA
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Table[Total[IntegerDigits[n]/.{0->6, 1->3, 2->4, 3->4, 6->5, 7->3, 8->7, 9->5}], {n, 0, 79}] (* Stefano Spezia, Dec 17 2021 *)
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| STATUS
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proposed
editing
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#39 by Jon E. Schoenfield at Fri Dec 17 10:57:42 EST 2021
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Discussion
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| Fri Dec 17
| 11:00
| Jon E. Schoenfield: I noticed that no two digits have the same set of segment counts except for the pair {6, 9} (not surprising given the rotational symmetry).
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