The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A342281 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A342281

A bisection of A001951: a(n) = A001951(2*n+1).
(history; published version)

#10 by N. J. A. Sloane at Wed Mar 24 15:35:58 EDT 2021

LINKS

N. J. A. Sloane, <a href="/A115004/a115004.txt">Families ofEssentially of Essentially Identical Sequences</a>, Mar 24 2021 (Includes this sequence)

Discussion

Wed Mar 24

15:35

OEIS Server: https://oeis.org/edit/global/2900

#9 by Susanna Cuyler at Wed Mar 24 14:39:52 EDT 2021

STATUS

editing

approved

#8 by Susanna Cuyler at Wed Mar 24 14:39:50 EDT 2021

LINKS

N. J. A. Sloane, <a href="/A115004/a115004.txt">Families ofEssentially Identical Sequences</a>, Mar 24 2021 (Includes this sequence)

STATUS

approved

editing

#7 by Alois P. Heinz at Tue Mar 16 19:59:56 EDT 2021

STATUS

editing

approved

#6 by Alois P. Heinz at Tue Mar 16 19:59:39 EDT 2021

DATA

1, 4, 7, 9, 12, 15, 18, 21, 24, 26, 29, 32, 35, 38, 41, 43, 46, 49, 52, 55, 57, 60, 63, 66, 69, 72, 74, 77, 80, 83, 86, 89, 91, 94, 97, 100, 103, 106, 108, 111, 114, 117, 120, 123, 125, 128, 131, 134, 137, 140, 142, 145, 148, 151, 154, 156, 159, 162, 165, 168

KEYWORD

nonn,more,new

EXTENSIONS

More terms from Alois P. Heinz, Mar 16 2021

STATUS

proposed

editing

Discussion

Tue Mar 16

19:59

Alois P. Heinz: ...

#5 by Chai Wah Wu at Tue Mar 16 19:51:00 EDT 2021

STATUS

editing

proposed

#4 by Chai Wah Wu at Tue Mar 16 19:50:54 EDT 2021

PROG

(Python)

from sympy import integer_nthroot

def A342281(n): return integer_nthroot(8*n*(n+1)+2, 2)[0] # Chai Wah Wu, Mar 16 2021

STATUS

approved

editing

#3 by N. J. A. Sloane at Tue Mar 16 18:33:17 EDT 2021

STATUS

editing

approved

#2 by N. J. A. Sloane at Tue Mar 16 18:33:14 EDT 2021

NAME

allocated for N. J. A. Sloane

A bisection of A001951: a(n) = A001951(2*n+1).

DATA

1, 4, 7, 9, 12, 15, 18, 21, 24, 26, 29, 32, 35, 38, 41, 43, 46, 49, 52, 55, 57, 60, 63, 66, 69, 72, 74, 77, 80, 83, 86, 89, 91, 94, 97, 100

OFFSET

0,2

CROSSREFS

Cf. A001951, A022842.

KEYWORD

allocated

nonn,more

AUTHOR

N. J. A. Sloane, Mar 16 2021

STATUS

approved

editing

#1 by N. J. A. Sloane at Sun Mar 07 14:00:32 EST 2021

NAME

allocated for N. J. A. Sloane

KEYWORD

allocated

STATUS

approved