A046875 -id:A046875

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Search: a046875 -id:a046875

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A046876

Length of runs in the sequence of row/column periods of Sprague-Grundy values of Wythoff's Game (A046875).

+20
2

1, 2, 1, 1, 1, 1, 4, 2, 3, 2, 3, 23, 24, 3, 20, 18, 84, 25, 43

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

a(20) >= 12. - Sean A. Irvine, May 02 2021

LINKS

Table of n, a(n) for n=1..19.

A. Dress, A. Flammenkamp and N. Pink, Additive periodicity of the Sprague-Grundy function of certain Nim games, Adv. Appl. Math., 22, p. 249-270 (1999).

CROSSREFS

Cf. A046874, A046875, A004481.

KEYWORD

nonn,more

AUTHOR

Achim Flammenkamp

EXTENSIONS

Entry revised by Sean A. Irvine, May 02 2021

STATUS

approved

A046874

Row/column pre-periods of Sprague-Grundy values of Wythoff's Game.

+10
2

0, 0, 0, 8, 9, 27, 37, 92, 102, 127, 224, 277, 347, 382, 613, 693, 771, 865, 919, 1032, 1165, 1252, 1293, 1373, 1732, 2208, 2314, 2608, 2889, 3221, 3890, 4422, 4419, 5614, 6065, 6837, 7116, 8041, 8356, 9208, 10333, 10799, 12518, 13849, 14190, 15844