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A151502 A006720(n)^4. 2
1, 1, 1, 1, 16, 81, 2401, 279841, 12117361, 9721171216, 5465500541281, 4541099550557761, 48178257964790528961, 148046697174216601867681, 3835980708567891638880403216, 258045180612631702971803868544561, 8100590302880631846481071607248577441 (list; graph; refs; listen; history; internal format)
OFFSET

0,5

CROSSREFS

Cf. A006720, A028945, A028935.

Sequence in context: A030514 A056571 A053909 * A030693 A159501 A172219

Adjacent sequences:  A151499 A151500 A151501 * A151503 A151504 A151505

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), May 14 2009

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Last modified February 15 14:20 EST 2012. Contains 205811 sequences.