a(n)=9*n-a(n-1)-9 (with a(1)=0)
0, 9, 9, 18, 18, 27, 27, 36, 36, 45, 45, 54, 54, 63, 63, 72, 72, 81, 81, 90, 90, 99, 99
4 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
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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