A176782 a(n)=a(n-1)^3-2*a(n-2) with a(1)=1, a(2)=2.

1, 2, 6, 212, 9528116, 865009958745459864472, 647236979404329414852005811109907426259024826523626405446225816

Offset

1,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..9

Mathematica

RecurrenceTable[{a[1]==1, a[2]==2, a[n]==a[n-1]^3-2*a[n-2]}, a, {n, 10}] (* Vincenzo Librandi, Jul 15 2012 *)

Prog

(Magma) I:=[1, 2]; [n le 2 select I[n] else Self(n-1)^3-2*Self(n-2): n in [1..7]]; // Vincenzo Librandi, Jul 15 2012

Crossrefs

Sequence in context: A285102 A285101 A361086 * A357191 A013083 A110387

Adjacent sequences: A176779 A176780 A176781 * A176783 A176784 A176785

Keyword

nonn

Author

Vincenzo Librandi, Apr 26 2010

Status

approved