A269726 a(n) = row number of extended Wythoff array (see A035513) which contains the sequence n times the Lucas numbers 1,3,4,7,11,18,... (A000204).

1, 8, 12, 44, 55, 66, 77, 88, 261, 290, 319, 348, 377, 406, 435, 464, 493, 522, 551, 580, 609, 1672, 1748, 1824, 1900, 1976, 2052, 2128, 2204, 2280, 2356, 2432, 2508, 2584, 2660, 2736, 2812, 2888, 2964, 3040, 3116, 3192, 3268, 3344, 3420, 3496, 3572, 3648

Offset: 1

Author

N. J. A. Sloane, Mar 07 2016

Keywords

• nonn
• easy

References

• J. H. Conway, Posting to Math Fun Mailing List, Dec 02 1996.

Crossrefs

Cf. A000045, A035513, A269725, A357097.

Formula

a(n) = A220249(n)-1. - R. J. Mathar, May 06 2017

a(n) = A357097(a(1), A269725(n)), where we write a(1) here to emphasize the semantics of the relationship. - Peter Munn, Aug 21 2025