A216491 a(n) = 12*5^n.

12, 60, 300, 1500, 7500, 37500, 187500, 937500, 4687500, 23437500, 117187500, 585937500, 2929687500, 14648437500, 73242187500, 366210937500, 1831054687500, 9155273437500, 45776367187500, 228881835937500, 1144409179687500, 5722045898437500, 28610229492187500

Offset: 0

Author

V. Raman, Sep 07 2012

Keywords

• nonn
• easy

Links

• Index entries for linear recurrences with constant coefficients, signature (5).

Crossrefs

Cf. A000351, A114307.

Programs

Mathematica

5^Range[20]*12 (* Alonso del Arte, Sep 10 2012 *)

PARI

for(i=0,22,print1((12*5^i),", "))

Formula

G.f.: 12/(1 - 5*x).