A028306 Triangle read by rows of numbers of permutations eliminating just card k out of n in game of Mousetrap.

1, 0, 0, 1, 0, 1, 2, 1, 1, 2, 9, 5, 5, 3, 9, 44, 31, 25, 20, 16, 44, 265, 203, 167, 142, 117, 96, 265, 1854, 1501, 1267, 1075, 932, 791, 675, 1854, 14833, 12449, 10745, 9311, 8241, 7132, 6205, 5413, 14833, 133496, 114955, 101005, 88993, 78607, 70340, 62141

Offset

0,7

References

R. K. Guy, Unsolved Problems Number Theory, E37.

R. K. Guy and R. J. Nowakowski, "Mousetrap," in D. Miklos, V. T. Sos and T. Szonyi, eds., Combinatorics, Paul Erdős is Eighty. Bolyai Society Math. Studies, Vol. 1, pp. 193-206, 1993.

Links

Table of n, a(n) for n=0..51.

R. K. Guy and R. J. Nowakowski, Mousetrap, Preprint, Feb 10 1993 [Annotated scanned copy]

Crossrefs

Diagonals include A000166, A002469. Cf. A028305.

Sequence in context: A336521 A356093 A233308 * A111259 A304195 A320076

Adjacent sequences: A028303 A028304 A028305 * A028307 A028308 A028309

Keyword

tabl,nonn

Author

N. J. A. Sloane

Status

approved