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A037988 Critical values in Conway's game of one-dimensional phutball. 4
1, 3, 4, 7, 9, 10, 11, 15, 16, 19, 21, 23, 24, 25, 26, 31, 33, 34, 35, 39, 40, 43, 44, 47, 49, 51, 53, 54, 55, 56, 57, 63, 64, 67, 69, 71, 72, 73, 74, 79, 81, 82, 83, 87, 89, 90, 91, 95, 96, 99, 100, 103, 104, 107, 109, 111, 113, 115, 116 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

The first player can move the ball 2a_n spaces before the second player can move the ball 2(a_{n-1}+1) spaces

A self-describing sequence. Pick any number n; this n says: "There are n terms in the sequence which are <= 2n". This sequence is the slowest increasing one with this property. - Eric Angelini, Jun 15 2007

REFERENCES

Berlekamp, Conway and Guy, "Winning Ways", Volume 2. Academic Press, 1982

LINKS

Table of n, a(n) for n=0..58.

CROSSREFS

Sequence in context: A010435 A057709 A139442 * A213508 A088958 A300061

Adjacent sequences:  A037985 A037986 A037987 * A037989 A037990 A037991

KEYWORD

easy,nonn

AUTHOR

Erich Friedman

STATUS

approved

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Last modified April 3 14:25 EDT 2020. Contains 333197 sequences. (Running on oeis4.)