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A138392
Hankel transform of A062992 with interpolated zeros.
1
1, 3, 12, 128, 2048, 81920, 5242880, 805306368, 206158430208, 123145302310912, 126100789566373888, 295147905179352825856, 1208925819614629174706176, 11141460353568422474092118016, 182541686432865033815525261574144
OFFSET
0,2
FORMULA
a(n)=2^(comb(n+1,2)+0^n-1)*(2+floor((n+1)/2)-0^n)
MAPLE
A138392 := proc(n)
2^(binomial(n+1, 2)+0^n-1)*(2+floor((n+1)/2)-0^n) ;
end proc:
seq(%(n), n=0..13) ; # R. J. Mathar, Feb 23 2015
CROSSREFS
Sequence in context: A162127 A073987 A317802 * A152544 A280115 A264149
KEYWORD
easy,nonn
AUTHOR
Paul Barry, Mar 18 2008
STATUS
approved