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A066775 Primes p such that 2*p^2 is not in A066721. 2
19, 53, 61, 101, 107, 251, 269, 311, 347, 419, 499, 521, 547, 563, 587, 673, 677, 691, 877, 937, 953, 1031, 1061, 1087, 1229, 1249, 1259, 1427, 1433, 1693, 1733, 1753, 1777, 1831 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..34.

David Applegate, First 10000 terms of A066721 and their factorizations

CROSSREFS

Sequence in context: A063306 A267572 A190267 * A118591 A031341 A165982

Adjacent sequences:  A066772 A066773 A066774 * A066776 A066777 A066778

KEYWORD

nonn

AUTHOR

David Applegate, N. J. A. Sloane, Jan 18 2002

STATUS

approved

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Last modified May 19 20:41 EDT 2019. Contains 323410 sequences. (Running on oeis4.)