A058734 Nim-product n*(n+1).

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

Author

N. J. A. Sloane, Dec 31 2000

Keywords

• nonn
• easy

References

• J. H. Conway, On Numbers and Games, Academic Press, p. 52.

Links

• R. J. Mathar, Table of n, a(n) for n = 0..1000
• Index entries for sequences related to Nim-multiplication

Crossrefs

A diagonal of A051775. Cf. A006042.

Formula

Nim-sum (A003987) of n and A006042(n).

a(n) = A051775(n,n+1).

Extensions

More terms from John W. Layman, Mar 05 2001