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A018220 Row 1 of A018219, i.e. (1,n,a_n) is a winning position. +0
2
2, 4, 0, 3, 1, 6, 5, 12, 15, 17, 14, 20, 7, 19, 10, 8, 28, 9, 31, 13, 11, 32, 38, 33, 41, 43, 40, 42, 16, 49, 51, 18, 21, 23, 53, 59, 61, 63, 22, 66, 26, 24, 27, 25, 67, 75, 68, 78, 76, 29, 79, 30, 85, 34, 88, 87, 93, 95, 97, 35, 100, 36, 98, 37, 99, 106, 39, 44, 46, 111, 114 (list; graph; listen)
OFFSET

0,1

COMMENT

Self-inverse when considered as a permutation or function, i.e. a(a(n)) = n.

LINKS

Index entries for sequences that are permutations of the natural numbers

CROSSREFS

Adjacent sequences: A018217 A018218 A018219 this_sequence A018221 A018222 A018223

Sequence in context: A007631 A123514 A064178 this_sequence A004580 A020822 A112635

KEYWORD

nonn

AUTHOR

kleber(AT)brandeis.edu (Michael Kleber)

EXTENSIONS

Edited and extended by Christian G. Bower (bowerc(AT)usa.net), Oct 29 2002

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Last modified October 10 20:39 EDT 2008. Contains 144831 sequences.


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