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A013890
a(n) = 19^(5*n + 1).
1
19, 47045881, 116490258898219, 288441413567621167681, 714209495693373205673756419, 1768453418076865701195582595329481, 4378865740046709085864680868712732574619, 10842505080063916320800450434338728415281531281, 26847115986241183138017674520015691090350184323352819
OFFSET
0,1
FORMULA
a(n) = 2476099*a(n-1), a(0)=19. - Vincenzo Librandi, May 27 2011
MATHEMATICA
NestList[2476099#&, 19, 20] (* Harvey P. Dale, Dec 23 2016 *)
PROG
(Magma) [19^(5*n+1): n in [0..10]]; // Vincenzo Librandi, May 27 2011
CROSSREFS
Cf. A001029.
Sequence in context: A145308 A087515 A038028 * A347353 A128400 A211378
KEYWORD
nonn
STATUS
approved