A007002 Sum of degrees of irreducible representations of alternating group A_n. (Formerly M2592)

1, 1, 3, 6, 16, 46, 126, 448, 1366, 5356, 18568, 76296, 297012, 1264264, 5412928, 23928024, 110468806, 509578384, 2495966844, 12051904744, 61878848596, 312943394336, 1670571625528, 8836179426416, 48794206157176, 269194017597376, 1533137311902576

Offset

1,3

References

J. H. Conway, R. T. Curtis, S. P. Norton, R. A. Parker and R. A. Wilson, ATLAS of Finite Groups. Oxford Univ. Press, 1985 [for best online version see https://oeis.org/wiki/Welcome#Links_to_Other_Sites].

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

Links

Eric M. Schmidt, Table of n, a(n) for n = 1..35

Prog

(GAP) A007002 := n -> Sum(List(Irr(CharacterTable("Alternating", n)), chi->chi[1])); # Eric M. Schmidt, Apr 12 2013

Crossrefs

Sequence in context: A113040 A244036 A220184 * A305136 A369073 A300355

Adjacent sequences: A006999 A007000 A007001 * A007003 A007004 A007005

Keyword

nonn

Author

N. J. A. Sloane.

Extensions

Corrected and extended by Eric M. Schmidt, Apr 12 2013

Status

approved