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A015974 Numbers k that divide 4^k + 1, k not a power of 5. 0
205, 1025, 2525, 5125, 8405, 12625, 25625, 42025, 63125, 103525, 128125, 168305, 202525, 210125, 255025, 315625, 344605, 517625, 640625, 841525, 875125, 1012625, 1050625, 1275125, 1578125, 1723025, 2042725, 2084645 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..28.

CROSSREFS

Cf. A015950.

Sequence in context: A020170 A260471 A249703 * A203870 A203863 A203896

Adjacent sequences:  A015971 A015972 A015973 * A015975 A015976 A015977

KEYWORD

nonn

AUTHOR

Robert G. Wilson v

STATUS

approved

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Last modified October 17 21:17 EDT 2021. Contains 348065 sequences. (Running on oeis4.)