A066775 Primes p such that 2*p^2 is not in A066721.

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

Offset: 1

Author

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

Keywords

• nonn
• more

Links

• David Applegate, First 10000 terms of A066721 and their factorizations