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A028306 Triangle read by rows of numbers of permutations eliminating just card k out of n in game of Mousetrap. 3
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 (list; table; graph; refs; listen; history; text; internal format)
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: A082386 A336521 A233308 * A111259 A304195 A320076

Adjacent sequences:  A028303 A028304 A028305 * A028307 A028308 A028309

KEYWORD

tabl,nonn

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified September 21 01:52 EDT 2020. Contains 337266 sequences. (Running on oeis4.)