

A102761


Same as A000179 except here a(1) = 1.


4



1, 1, 0, 1, 2, 13, 80, 579, 4738, 43387, 439792, 4890741, 59216642, 775596313, 10927434464, 164806435783, 2649391469058, 45226435601207, 817056406224416, 15574618910994665, 312400218671253762, 6577618644576902053
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

0,5


COMMENTS

Created to simplify the formula for A000186.


REFERENCES

J. Riordan, An Introduction to Combinatorial Analysis, Wiley, 1958, p. 197.


LINKS

Table of n, a(n) for n=0..21.
Vladimir Shevelev, Spectrum of permanent's values and its extremal magnitudes in $Λ_n^3$ and $Λ_n(α,β,γ)$, arXiv:1104.4051 [math.CO], (14August2011)


CROSSREFS

Cf. A000179, A000186.
Sequence in context: A037571 A179237 A216316 * A000179 A246383 A189087
Adjacent sequences: A102758 A102759 A102760 * A102762 A102763 A102764


KEYWORD

sign,easy


AUTHOR

N. J. A. Sloane, Apr 04 2010, following a suggestion from Vladimir Shevelev


STATUS

approved



