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A292331 Numbers k such that k^2 divides 5^k + 1. 2
1, 3, 21, 609, 903, 2667, 9429, 26187, 77343, 114681, 159663, 212541, 273441, 405447, 1197483, 1357503, 1398747, 3325749, 4451181, 4630227, 6099429, 6865509, 8620941, 9139263, 11757963, 13047447, 20277201, 26992707, 34727007, 37088709, 38596929, 39367587, 40563663, 51491769, 58372629, 59280123, 63002541, 71688687, 95430909 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
CROSSREFS
Subsequence of A015951.
Sequence in context: A344260 A135327 A128679 * A111432 A180999 A181003
KEYWORD
nonn
AUTHOR
Max Alekseyev, Sep 14 2017
STATUS
approved

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Last modified May 10 08:52 EDT 2024. Contains 372373 sequences. (Running on oeis4.)