A013842 a(n) = 7^(5*n + 1).

7, 117649, 1977326743, 33232930569601, 558545864083284007, 9387480337647754305649, 157775382034845806615042743, 2651730845859653471779023381601, 44567640326363195900190045974568007, 749048330965186233494494102694564493649

Offset

0,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..100

Tanya Khovanova, Recursive Sequences

Index entries for linear recurrences with constant coefficients, signature (16807).

Mathematica

NestList[16807#&, 7, 20] (* Harvey P. Dale, Jan 15 2023 *)

Prog

(Magma) [7^(5*n+1): n in [0..15]]; // Vincenzo Librandi, Jul 08 2011

Crossrefs

Sequence in context: A122000 A291906 A090769 * A247791 A243859 A297059

Adjacent sequences: A013839 A013840 A013841 * A013843 A013844 A013845

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved