A188889 - OEIS

A188889

Least number k > 0 that makes (k+1)^n (mod k^n) a positive even number.

3, 5, 3, 5, 7, 5, 9, 5, 7, 5, 3, 3, 3, 5, 5, 5, 3, 5, 3, 3, 5, 3, 3, 5, 3, 5, 7, 7, 3, 3, 5, 5, 3, 3, 3, 5, 5, 7, 7, 5, 9, 7, 3, 3, 3, 15, 7, 3, 3, 3, 3, 5, 3, 7, 3, 5, 5, 7, 3, 3, 5, 3, 5, 3, 3, 3, 5, 5, 5, 5, 5, 5, 7, 5, 5, 3, 5, 3, 3, 3, 5, 3, 13, 3, 3, 3, 3, 13, 3, 3, 5, 5, 3, 7, 3, 5, 5, 5

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OFFSET

3,1

COMMENTS

The value of (k+1)^n (mod k^n) is in A188699.

LINKS

Table of n, a(n) for n=3..100.

MATHEMATICA

Table[k = 1; While[r = Mod[(k + 1)^n, k^n]; r == 0 || OddQ[r], k++]; k, {n, 3, 100}]

CROSSREFS

Sequence in context: A249384 A228446 A364564 * A219604 A296489 A253398

Adjacent sequences: A188886 A188887 A188888 * A188890 A188891 A188892

KEYWORD

nonn

AUTHOR

T. D. Noe, Apr 12 2011

STATUS

approved