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A071539 Number of n-tuples of elements e_1,e_2,...,e_n in the symmetric group S_3 such that the subgroup generated by e_1,e_2,...,e_n is S_3. 1
0, 18, 168, 1170, 7440, 45738, 277368, 1672290, 10056480, 60404058 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

G.F. is (-18x + 48x^2) / (1 - 12x + 36x^4 + 47x^2 - 72x^3).

LINKS

Table of n, a(n) for n=1..10.

FORMULA

a(n) = 6^n - 3*2^n - 3^n + 3

CROSSREFS

Sequence in context: A041618 A055915 A208827 * A125381 A126539 A213802

Adjacent sequences:  A071536 A071537 A071538 * A071540 A071541 A071542

KEYWORD

nonn

AUTHOR

Sharon Sela (sharonsela(AT)hotmail.com), Jun 02 2002

STATUS

approved

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Last modified May 26 01:28 EDT 2013. Contains 225652 sequences.