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A007718 Number of independent polynomial invariants of matrix of order n. 0
1, 3, 6, 17, 40, 125, 354, 1159, 3774, 13113, 46426, 171027, 644038, 2493848, 9867688, 39922991, 164747459, 693093407, 2968918400, 12940917244, 57353242370, 258306634422, 1181572250326, 5486982683756, 25856584485254 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..25.

FORMULA

Inverse Euler transform of A007716.

CROSSREFS

Sequence in context: A049943 A027415 A151503 * A089264 A121399 A212421

Adjacent sequences:  A007715 A007716 A007717 * A007719 A007720 A007721

KEYWORD

nonn

AUTHOR

C. L. Mallows (colinm(AT)research.avayalabs.com)

EXTENSIONS

a(7)-a(25) from Franklin T. Adams-Watters, Jun 21 2011

STATUS

approved

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Last modified June 18 21:31 EDT 2013. Contains 226356 sequences.