A079925 Solution to the Dancing School Problem with n girls and n+6 boys: f(n,6).

7, 43, 234, 1146, 5150, 21652, 86608, 334072, 1249768, 4557284, 16266830, 57031078, 196933710, 671224467, 2262089361, 7548882573, 24975936372, 82012110724, 267505920876, 867390073384

Offset

1,1

Comments

f(g,h) = per(B), the permanent of the (0,1)-matrix B of size g X g+h with b(i,j)=1 if and only if i <= j <= i+h. See A079908 for more information.

Links

Table of n, a(n) for n=1..20.

Jaap Spies, Dancing School Problems, Nieuw Archief voor Wiskunde 5/7 nr. 4, Dec 2006, pp. 283-285.

Jaap Spies, Dancing School Problems, Permanent solutions of Problem 29.

Crossrefs

Cf. A079908-A079928.

Sequence in context: A027176 A244200 A334241 * A126718 A346227 A081896

Adjacent sequences: A079922 A079923 A079924 * A079926 A079927 A079928

Keyword

nonn,more

Author

Jaap Spies, Jan 28 2003

Extensions

Corrected by Jaap Spies, Feb 01 2004

More terms Dec 14 2006

Status

approved