A053060 Number of n X n invertible binary matrices A such that A^3+I is invertible.

0, 0, 48, 4032, 1935360, 4022599680, 32585690382336, 1063349908766982144, 139112376066747546992640, 72863495247749516035746693120, 152731190537447000980973281829978112

Offset

1,3

References

V. Jovovic, The cycle index polynomials of some classical groups, Belgrade, 1995, unpublished.

Links

Table of n, a(n) for n=1..11.

Crossrefs

Cf. A002820, A053071.

Sequence in context: A027567 A271188 A033475 * A004034 A134164 A270253

Adjacent sequences: A053057 A053058 A053059 * A053061 A053062 A053063

Keyword

nonn

Author

Vladeta Jovovic, Mar 18 2000

Status

approved