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A191559
a(n) = 25^(4*n+1).
1
25, 9765625, 3814697265625, 1490116119384765625, 582076609134674072265625, 227373675443232059478759765625, 88817841970012523233890533447265625, 34694469519536141888238489627838134765625, 13552527156068805425093160010874271392822265625
OFFSET
0,1
COMMENTS
Subsequence of A000351.
FORMULA
G.f.: (25)/(1-390625*x). - Vincenzo Librandi, Jun 16 2016
a(n) = 5^(8*n+2) = 5^(2*(4*n+1)).
MATHEMATICA
Table[25^(4 n + 1), {n, 0, 10}] (* Vincenzo Librandi, Jun 12 2016 *)
PROG
(Magma) [25^(4*n+1): n in [0..10]]
CROSSREFS
Cf. A000351.
Sequence in context: A251362 A196520 A228536 * A279039 A237522 A347810
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Jul 07 2011
STATUS
approved