A019307 First time that the Grundy function G(x) for "subtract-a-Fibonacci-number" takes the value n.

0, 1, 2, 3, 8, 9, 144, 145, 167, 627, 2677, 2725, 2726, 12071, 48652, 206025, 63331966, 307304209, 1357691960

Offset

0,3

Comments

See Rouse Ball and Coxeter for "subtract-a-square".

References

W. W. Rouse Ball and H. S. M. Coxeter, Mathematical Recreations and Essays, 12th Edition.

Links

Table of n, a(n) for n=0..18.

Rémy Sigrist, C program

Prog

(C) See Links section.

Crossrefs

Cf. A014588, A297963.

Sequence in context: A087034 A364382 A133165 * A342849 A247580 A345352

Adjacent sequences: A019304 A019305 A019306 * A019308 A019309 A019310

Keyword

nonn,more

Author

Torsten Sillke (sillke(AT)lh-systems.de)

Extensions

a(17) from Pontus von Brömssen, Jun 06 2022

a(18) from Rémy Sigrist, Jun 12 2022

Status

approved