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A058734
Nim-product n*(n+1).
3
0, 2, 1, 12, 2, 8, 3, 15, 5, 11, 4, 14, 7, 1, 6, 240, 8, 42, 9, 100, 10, 32, 11, 231, 13, 35, 12, 102, 15, 41, 14, 124, 20, 38, 21, 168, 22, 44, 23, 107, 17, 47, 16, 170, 19, 37, 18, 184, 28, 14, 29, 192, 30, 4, 31, 131, 25, 7, 24, 194, 27, 13, 26, 214, 39, 165, 38, 203
OFFSET
0,2
REFERENCES
J. H. Conway, On Numbers and Games, Academic Press, p. 52.
FORMULA
Nim-sum (A003987) of n and A006042(n).
a(n) = A051775(n,n+1).
CROSSREFS
A diagonal of A051775. Cf. A006042.
Sequence in context: A285645 A358111 A211099 * A213057 A103187 A286670
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Dec 31 2000
EXTENSIONS
More terms from John W. Layman, Mar 05 2001
STATUS
approved