A077753 a(1) = 1, a(2) = 2, a(2n) = a(2n-1)*a(2n-2), a(2n+1)= a(2n-1) + a(2n).

1, 2, 3, 6, 9, 54, 63, 3402, 3465, 11787930, 11791395, 138996138862350, 138996150653745, 19319928257600060753067000750, 19319928257600199749217654495, 373259627878816004843210480238884928715510929499405871250

Offset

1,2

Links

Table of n, a(n) for n=1..16.

Crossrefs

Cf. A039941, A248479.

Sequence in context: A286435 A145761 A071714 * A353122 A058911 A249247

Adjacent sequences: A077750 A077751 A077752 * A077754 A077755 A077756

Keyword

nonn

Author

Amarnath Murthy, Nov 20 2002

Extensions

More terms from Sascha Kurz, Jan 04 2003

Edited by N. J. A. Sloane, May 21 2008 at the suggestion of R. J. Mathar

Offset corrected from 0 to 1 by Antti Karttunen, Oct 26 2014

Status

approved