References to A121387

Semiprimes p*q with p and q primes of the form 4k+1 (A002144).
25, 65, 85, 145, 169, 185, 205, 221, 265, 289, 305, 365, 377, 445, 481, 485, 493, 505


1 seqfan posts

Fri May 21 09:59:46 CEST 2010    [seqfan] Re: Missing word in A107978

Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
Links to OEIS content are included according to The OEIS End-User License Agreement .