A196655 33*2^(n+1) + 7.

73, 139, 271, 535, 1063, 2119, 4231, 8455, 16903, 33799, 67591, 135175, 270343, 540679, 1081351, 2162695, 4325383, 8650759, 17301511, 34603015, 69206023, 138412039, 276824071, 553648135, 1107296263, 2214592519, 4429185031, 8858370055, 17716740103

Offset

0,1

Comments

Primes of this sequence in A196656

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Index entries for linear recurrences with constant coefficients, signature (3,-2).

Formula

a(n) = 33*2^(n+1) + 7.

Mathematica

LinearRecurrence[{3, -2}, {73, 139}, 50] (* Vincenzo Librandi, Nov 25 2011 *)

Prog

(Magma) [33*2^(n+1) + 7: n in [0..100]];
(PARI) a(n)=66<<n+7 \\ Charles R Greathouse IV, Oct 07 2011

Crossrefs

Sequence in context: A142929 A027898 A064668 * A196656 A229157 A037994

Adjacent sequences: A196652 A196653 A196654 * A196656 A196657 A196658

Keyword

nonn,easy

Author

Brad Clardy, Oct 04 2011

Status

approved