**a(0) = 1, a(1) = 3; for n > 1, a(n) = 6a(n-1) - a(n-2).**

*1, 3, 17, 99, 577, 3363, 19601, 114243, 665857, 3880899, 22619537, 131836323*

Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword

*15 seqfan posts*

*Mon Jan 16 10:12:57 CET 2012* [seqfan] Re: Richard Guy's request for several new sequences (amended)

*Fri Nov 20 02:48:14 CET 2009* [seqfan] Re: detective work related to Creighton Dement's \"Floretions\"

*Fri Nov 20 00:03:00 CET 2009* [seqfan] detective work related to Creighton Dement's \"Floretions\"

*Thu Nov 19 17:19:12 CET 2009* [seqfan] detective work related to Creighton Dement's "Floretions"

*Tue Aug 18 18:26:24 CEST 2009* [seqfan] Re: A1: In binary representation, a(n)^2 is the smallest square with n^2 as substring.

*Tue Aug 18 18:10:08 CEST 2009* [seqfan] Re: A1: In binary representation, a(n)^2 is the smallest square with n^2 as substring.

*Fri Apr 17 02:37:55 CEST 2009* [seqfan] lower principal and upper principal

*Sun Mar 22 14:55:12 CET 2009* [seqfan] Re: Typo in formula-section of A001541 ?

*Sat Mar 21 20:07:29 CET 2009* [seqfan] Re: Typo in formula-section of A001541 ?

*Sat Mar 21 19:26:44 CET 2009* [seqfan] Re: Typo in formula-section of A001541 ?

*Mon Mar 9 23:56:08 CET 2009* [seqfan] Re: Typo in formula-section of A001541 ?

*Mon Mar 9 18:08:15 CET 2009* [seqfan] Re: Typo in formula-section of A001541 ?

*Mon Mar 9 04:03:20 CET 2009* [seqfan] Re: Typo in formula-section of A001541 ?

*Mon Mar 9 01:35:27 CET 2009* [seqfan] Typo in formula-section of A001541 ?

*Sun Jan 11 23:36:02 CET 2009* [seqfan] Index of linear recurrences

Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword

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