Product of a prime and the previous number.
2, 6, 20, 42, 110, 156, 272, 342, 506, 812, 930, 1332, 1640, 1806, 2162, 2756, 3422
4 seqfan posts
Sun Feb 27 14:54:28 CET 2011 [seqfan] Re: PUZZLE of title of A036689
Sun Feb 27 14:42:52 CET 2011 [seqfan] Don't change existing sequences unless you get permission.
Sun Feb 27 14:14:53 CET 2011 [seqfan] Re: PUZZLE of title of A036689
Sat Feb 26 23:44:18 CET 2011 [seqfan] PUZZLE of title of A036689
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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