Products of two primes of the form 4n+3 (A002145).
9, 21, 33, 49, 57, 69, 77, 93, 121, 129, 133, 141, 161, 177, 201, 209, 213, 217, 237
5 seqfan posts
Fri May 21 09:59:46 CEST 2010 [seqfan] Re: Missing word in A107978
Fri May 21 06:03:22 CEST 2010 [seqfan] Re: Missing word in A107978
Fri May 21 04:45:46 CEST 2010 [seqfan] Re: Missing word in A107978
Fri May 21 02:57:56 CEST 2010 [seqfan] Re: Missing word in A107978
Fri May 21 01:04:39 CEST 2010 [seqfan] Missing word in A107978
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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