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A032535 Odd numbers that, when expressed in base 2 and then interpreted in base 10, yield a multiple of the original number. 0
1, 21, 273, 2231, 10101, 28261, 611123, 1200341, 3427673, 8108919, 38636301, 51484647, 2202416417, 11102657671, 42822560781 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
EXAMPLE
273 is a term: 273_10 = 100010001_2; 100010001 = 273*366337. - Jon E. Schoenfield, Oct 25 2019
MATHEMATICA
Select[Range[1, 10^6, 2], Mod[ FromDigits@ IntegerDigits[#, 2], #] == 0 &] (* Giovanni Resta, Jul 12 2016 *)
CROSSREFS
= odd(A032533). See also A032532 for explanation.
Sequence in context: A320819 A360499 A228215 * A022745 A225967 A334529
KEYWORD
nonn,base,more
AUTHOR
Patrick De Geest, Apr 15 1998
EXTENSIONS
a(13)-a(15) from Giovanni Resta, Jul 12 2016
STATUS
approved

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Last modified September 1 15:21 EDT 2024. Contains 375591 sequences. (Running on oeis4.)