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A135314 7^n*6^(n^2). 2
1, 42, 63504, 3456649728, 6773484887801856, 477827850919028491026432, 1213481763117613016471583634489344, 110942398014527364799038852663129544775958528 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

COMMENTS

Hankel transform of A130978 .

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..25

FORMULA

a(n)=7^n*6^(n^2)=A000420(n)*A076781(n).

PROG

(MAGMA)[7^n*6^(n^2): n in [0..10]]; // Vincenzo Librandi, May 30 2011

CROSSREFS

Sequence in context: A174766 A184895 A159433 * A135425 A028669 A147687

Adjacent sequences:  A135311 A135312 A135313 * A135315 A135316 A135317

KEYWORD

nonn

AUTHOR

Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Dec 05 2007

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Last modified February 14 09:50 EST 2012. Contains 205614 sequences.