A204986 - OEIS

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A204986

Least k such that n divides A204985(k), the k-th difference between numbers of the form 2^k.

1, 1, 2, 3, 7, 2, 4, 6, 16, 7, 46, 5, 67, 4, 7, 10, 29, 16, 154, 12, 16, 46, 56, 9, 191, 67, 154, 8, 379, 7, 11, 15, 46, 29, 67, 23, 631, 154, 67, 18, 191, 16, 92, 57, 67, 56, 254, 14, 211, 191

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

COMMENTS

A204986(2n-1)=A204939(2n-1) for n>=1. For a guide to related sequences, see A204892.

LINKS

Table of n, a(n) for n=1..50.

MATHEMATICA

(See the program at A204987.)

CROSSREFS

Cf. A204987, A204892.

Sequence in context: A236290 A105273 A174925 * A160910 A292389 A195306

Adjacent sequences: A204983 A204984 A204985 * A204987 A204988 A204989

KEYWORD

nonn

AUTHOR

Clark Kimberling, Jan 21 2012

STATUS

approved