a(1)=1; for n>1, a(n)=a(n-1)+4 if n is already in the sequence, a(n)=a(n-1)+2 otherwise.
1, 3, 7, 9, 11, 13, 17, 19, 23, 25, 29, 31, 35, 37, 39, 41, 45, 47, 51, 53, 55, 57, 61, 63
5 seqfan posts
Sun Dec 7 20:31:39 CET 2008 [seqfan] Re: A080906?
Sun Dec 7 20:24:54 CET 2008 [seqfan] Re: A080906?
Sun Dec 7 08:05:05 CET 2008 [seqfan] Re: A080906?
Sun Dec 7 07:26:27 CET 2008 [seqfan] Re: A080906?
Sun Dec 7 06:50:42 CET 2008 [seqfan] A080906?
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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