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A030106 Base 7 reversal of n (written in base 10). 4
0, 1, 2, 3, 4, 5, 6, 1, 8, 15, 22, 29, 36, 43, 2, 9, 16, 23, 30, 37, 44, 3, 10, 17, 24, 31, 38, 45, 4, 11, 18, 25, 32, 39, 46, 5, 12, 19, 26, 33, 40, 47, 6, 13, 20, 27, 34, 41, 48, 1, 50, 99, 148, 197, 246, 295, 8, 57, 106, 155, 204, 253, 302, 15, 64, 113, 162, 211, 260, 309, 22, 71 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..71.

MATHEMATICA

Table[FromDigits[Reverse[IntegerDigits[n, 7]], 7], {n, 0, 80}] (* Harvey P. Dale, Sep 17 2013 *)

PROG

(PARI) a(n, b=7)=subst(Polrev(base(n, b)), x, b) /* where */

base(n, b)={my(a=[n%b]); while(0<n\=b, a=concat(n%b, a)); a}  \\ M. F. Hasler, Nov 04 2011

CROSSREFS

Cf. A030101 - A030108, A004086.

Sequence in context: A242603 A106608 A255692 * A255592 A037894 A037902

Adjacent sequences:  A030103 A030104 A030105 * A030107 A030108 A030109

KEYWORD

nonn,base

AUTHOR

David W. Wilson

STATUS

approved

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Last modified June 24 07:19 EDT 2017. Contains 288697 sequences.