9*n/2 -(3+9*(-1)^n)/4.
6, 6, 15, 15, 24, 24, 33, 33, 42, 42, 51, 51, 60, 60, 69, 69, 78, 78, 87, 87, 96, 96, 105
5 seqfan posts
Tue Dec 1 05:51:12 CET 2009 [seqfan] Re: Duplicated "A*n+B" sequences
Mon Nov 30 11:32:49 CET 2009 [seqfan] Duplicated "A*n+B" sequences
Sat Nov 28 04:33:38 CET 2009 [seqfan] Re: Same sequences
Fri Nov 27 15:48:35 CET 2009 [seqfan] Re: Same sequences
Fri Nov 27 10:10:07 CET 2009 [seqfan] Same sequences
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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