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A090205 n^n * (n+1)^(n+1). 2
4, 108, 6912, 800000, 145800000, 38423222208, 13816758796288, 6499837226778624, 3874204890000000000, 2853116706110000000000, 2543867514227405321404416, 2700464873652770753916960768 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

I was made aware of this sequence by M. Frazer.

EXAMPLE

a(4) = 4^4 * 5^5 = 256 * 3125 = 800000

CROSSREFS

Sequence in context: A131092 A123056 A024263 * A061464 A107048 A185702

Adjacent sequences:  A090202 A090203 A090204 * A090206 A090207 A090208

KEYWORD

easy,nonn

AUTHOR

Philip Newton (pne(AT)writeme.com), Jan 22 2004

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Last modified February 15 05:45 EST 2012. Contains 205694 sequences.