A068299 - OEIS

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A068299

1/10 the number of colorings of an n X n octagonal array with 10 colors.

1, 504, 9853704, 7488942792408, 221253369424029100872, 254101505958294674877998194968, 11344162587174574603922830864958174183688, 19687269229964173171963421211996119947570831281276072

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Table of n, a(n) for n=1..8.

CROSSREFS

Cf. A068239-A068305, A000332, A002417, A027441, A212208, A212209.

Sequence in context: A226266 A278371 A278655 * A003798 A003791 A003925

Adjacent sequences: A068296 A068297 A068298 * A068300 A068301 A068302

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 24 2002

EXTENSIONS

a(5)-a(8) from Alois P. Heinz, May 04 2012

STATUS

approved