A051911 Triangle T(n,m) = Nim-product of n and m, read by rows, 1<=n<=m.

1, 2, 3, 3, 1, 2, 4, 8, 12, 6, 5, 10, 15, 2, 7, 6, 11, 13, 14, 8, 5, 7, 9, 14, 10, 13, 3, 4, 8, 12, 4, 11, 3, 7, 15, 13, 9, 14, 7, 15, 6, 1, 8, 5, 12, 10, 15, 5, 3, 9, 12, 6, 1, 11, 14, 11, 13, 6, 7, 12, 10, 1, 9, 2, 4, 15, 12, 4, 8, 13, 1, 9, 5, 6, 10, 2, 14, 11, 13, 6, 11, 9, 4, 15, 2, 14, 3, 8

Offset

1,2

Comments

A051910 with the first column (the zeros) removed.

References

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

Links

R. J. Mathar, Table of n, a(n) for n = 1..3240

Index entries for sequences related to Nim-multiplication

Example

Triangle starts
1;
2,  3;
3,  1,  2;
4,  8, 12,  6;
5, 10, 15,  2,  7;
6, 11, 13, 14,  8, 5;
7,  9, 14, 10, 13, 3,  4;
8, 12,  4, 11,  3, 7, 15, 13;

Crossrefs

Cf. A051776, A003987, A051775, A051776, A051910.

Sequence in context: A335490 A334290 A294101 * A106595 A181608 A272873

Adjacent sequences: A051908 A051909 A051910 * A051912 A051913 A051914

Keyword

tabl,nonn,easy,nice

Author

N. J. A. Sloane, Dec 20 1999

Extensions

More terms (taken from the Conway reference) from Joshua Zucker, May 03 2006

Status

approved