A104273 Table of Sprague-Grundy functions for a certain family of hypergraphs, read by antidiagonals.

1, 1, 0, 1, 2, 1, 1, 2, 0, 0, 1, 2, 3, 1, 1, 1, 2, 3, 0, 2, 0, 1, 2, 3, 1, 1, 0, 1

Offset

1,5

Links

Table of n, a(n) for n=1..28.

A. S. Fraenkel and E. R. Scheinerman, A deletion game on hypergraphs, Discrete Appl. Math., 30 (1991), 155-162.

Example

Array begins:
1 0 1 0 1 0 1 ...
1 2 0 1 2 0 1 ...
1 2 3 0 1 >=2 ...
1 2 3 1 0 >=2 ...
1 2 3 1 2 ?

Crossrefs

Sequence in context: A083890 A000989 A132401 * A051778 A057554 A060575

Adjacent sequences: A104270 A104271 A104272 * A104274 A104275 A104276

Keyword

nonn,tabl,more

Author

N. J. A. Sloane, Apr 20 2005

Status

approved