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A275894 a(n) = A275884(n+1)-1. 6
0, 1, 2, 5, 6, 7, 8, 11, 13, 15, 16, 17, 18, 21, 22, 23, 24, 27, 29, 31, 32, 34, 35, 36, 38, 40, 43, 44, 45, 46, 47, 50, 51, 52, 54, 56, 59, 60, 61, 62, 64, 65, 67, 69, 71, 72, 73, 75, 78, 80, 81, 82, 83, 86, 87, 88, 91, 92, 93, 95, 96, 97, 99, 102, 104, 105, 106, 108, 109, 111, 113, 114, 117, 118, 120 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

All of A065188, A065189, A199134, A275884 should really have started at 0 rather than 1. Then the graph of A065188, for example, would be comparable with the graph of A002251.

LINKS

N. J. A. Sloane, Table of n, a(n) for n = 0..30900

F. Michel Dekking, Jeffrey Shallit, and N. J. A. Sloane, Queens in exile: non-attacking queens on infinite chess boards, Electronic J. Combin., 27:1 (2020), #P1.52.

CROSSREFS

Cf. A065188, A065189, A199134, A275884, A275893, A002251.

Sequence in context: A122806 A122546 A258775 * A299635 A170944 A074940

Adjacent sequences:  A275891 A275892 A275893 * A275895 A275896 A275897

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Aug 23 2016

STATUS

approved

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Last modified March 8 20:14 EST 2021. Contains 341953 sequences. (Running on oeis4.)