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A317972
Pseudoprimes congruent to 7 mod 10.
1
1387, 2047, 3277, 7957, 13747, 23377, 31417, 46657, 60787, 65077, 88357, 126217, 164737, 188057, 233017, 275887, 341497, 390937, 486737, 489997, 493697, 514447, 580337, 604117, 672487, 680627, 748657, 769567, 769757, 916327, 950797, 1092547, 1093417
OFFSET
1,1
COMMENTS
McDaniel shows the sequence is infinite.
LINKS
Wayne L. McDaniel, Some pseudoprimes and related numbers having special forms, Math. Comp. 53:187 (1989), 407-409.
CROSSREFS
A subsequence of A001567.
Cf. A216667.
Sequence in context: A200315 A063879 A063172 * A216667 A177884 A182123
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Sep 02 2018
STATUS
approved