a(n) = 5^(2^n) mod 10^n.
5, 25, 625, 625, 90625, 890625, 2890625, 12890625, 212890625, 8212890625
6 seqfan posts
Thu Nov 4 07:02:41 CET 2010 [seqfan] Re: correcting A181539
Wed Jul 21 20:19:32 CEST 2010 [seqfan] Re: 4th term ?
Wed Jul 21 20:18:32 CEST 2010 [seqfan] Re: 4th term ?
Wed Jul 21 20:16:03 CEST 2010 [seqfan] Re: 4th term ?
Wed Jul 21 20:16:48 CEST 2010 [seqfan] Re: 4th term ?
Wed Jul 21 19:59:51 CEST 2010 [seqfan] 4th term ?
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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