A035613 - OEIS

A035613

7 in base n.

1111111, 111, 21, 13, 12, 11, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..93.

Index entries for linear recurrences with constant coefficients, signature (1).

FORMULA

G.f.: x*(1111111-1111000*x-90*x^2-8*x^3-x^4-x^5-x^6-3*x^7)/(1-x). - Bruno Berselli, Sep 12 2011

MATHEMATICA

Prepend[Table[FromDigits[IntegerDigits[7, n]], {n, 2, 100}], (10^7 - 1)/9] (* Arkadiusz Wesolowski, Sep 12 2011 *)

PROG

(PARI) a(n)=if(n>7, 7, [1111111, 111, 21, 13, 12, 11, 10][n]) \\ Charles R Greathouse IV, Sep 02 2011

(Magma) I:=[1111111, 111, 21, 13, 12, 11, 10]; [n lt 8 select I[n] else 7: n in [1..93]]; // Bruno Berselli, Sep 12 2011

CROSSREFS

Sequence in context: A229783 A176999 A359347 * A038449 A262498 A257937

Adjacent sequences: A035610 A035611 A035612 * A035614 A035615 A035616

KEYWORD

nonn,base,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved