A168089 a(n) = 2^pentanacci(n).

1, 1, 1, 1, 2, 2, 4, 16, 256, 65536, 2147483648, 2305843009213693952, 1329227995784915872903807060280344576, 110427941548649020598956093796432407239217743554726184882600387580788736

Offset: 0

Author

Vladimir Joseph Stephan Orlovsky, Nov 18 2009

Keywords

• nonn

Links

• Vincenzo Librandi, Table of n, a(n) for n = 0..16

Crossrefs

Cf. A001591, A000301, A063401, A168088.

Programs

Mathematica

2^LinearRecurrence[{1, 1, 1, 1, 1}, {0, 0, 0, 0, 1}, 15] (* Vincenzo Librandi, Dec 09 2018 *)

Formula

a(n) = 2^A001591(n).