A071588 Powers of 6 written backwards.

1, 6, 63, 612, 6921, 6777, 65664, 639972, 6169761, 69677001, 67166406, 650797263, 6332876712, 61049606031, 69046146387, 675489481074, 6547099011282, 63744495662961, 614866659955101, 694010047953906, 6792600448516563

Offset

0,2

Links

Seiichi Manyama, Table of n, a(n) for n = 0..1000

Formula

a(n) = A004086(A000400(n)).

Mathematica

FromDigits[Reverse[IntegerDigits[#]]]&/@(6^Range[0, 30]) (* Harvey P. Dale, Feb 02 2012 *)

Prog

(PARI) for(i=1, 50, n=5^i; s=ceil(log(n)/log(10)); print1(sum(i=0, s, 10^(s-i-1)*(floor(n/10^i)-10*floor(n/10^(i+1)))), ", "))

Crossrefs

Cf. A000400, A004086, A004094, A004167, A071582, A071583, A071584, A071586, A071587.

Sequence in context: A272495 A039937 A134112 * A001261 A252813 A346581

Adjacent sequences: A071585 A071586 A071587 * A071589 A071590 A071591

Keyword

easy,nonn,base

Author

Benoit Cloitre, Jun 01 2002

Status

approved