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A135398
a(n) = 3^n * 4^(n^2).
1
1, 12, 2304, 7077888, 347892350976, 273593677362757632, 3442605166011971360784384, 693087965674784425268322477539328, 2232592609368277258783200799359831235362816
OFFSET
0,2
COMMENTS
Hankel transform of A132863 .
LINKS
FORMULA
a(n) = 3^n*4^(n^2) = A000244(n)*A060757(n).
MATHEMATICA
Table[3^n*4^(n^2), {n, 0, 10}] (* G. C. Greubel, Oct 12 2016 *)
PROG
(PARI) a(n)=3^n*4^n^2 \\ Charles R Greathouse IV, Oct 12 2016
CROSSREFS
Sequence in context: A205306 A268421 A129206 * A203426 A268589 A372343
KEYWORD
nonn,easy
AUTHOR
Philippe Deléham, Dec 11 2007
STATUS
approved