A029891 Number of even graphical partitions.

1, 3, 7, 23, 70, 242, 832, 2983, 10759, 39482, 145892, 543877, 2038831, 7685211, 29092055, 110554267, 421495147, 1611676767

Offset

1,2

References

R. A. Brualdi, H. J. Ryser, Combinatorial Matrix Theory, Cambridge Univ. Press, 1992.

Links

Table of n, a(n) for n=1..18.

Index entries for sequences related to graphical partitions

Formula

Calculated using Cor. 6.3.3, Th. 6.3.6, Cor. 6.2.5 of Brualdi-Ryser.

Crossrefs

Cf. A000569, A004250, A004251, A029889.

Sequence in context: A151268 A148701 A331685 * A151454 A373496 A106936

Adjacent sequences: A029888 A029889 A029890 * A029892 A029893 A029894

Keyword

nonn

Author

TORSTEN.SILLKE(AT)LHSYSTEMS.COM

Status

approved