**a(1) = a(2) = 1, a(3) = 4; thereafter a(n) = a(n-1) + a(n-3).**

*1, 1, 4, 5, 6, 10, 15, 21, 31, 46, 67, 98, 144, 211, 309, 453, 664, 973, 1426, 2090*

*10 seqfan posts*

*Sat Feb 14 02:39:45 CET 2009* [seqfan] Re: Constants derived from Artin's constants

*Fri Feb 13 18:38:17 CET 2009* [seqfan] Constants derived from Artin's constants

*Sat Nov 22 08:36:42 CET 2008* [seqfan] Re: Integer Sequence Analysis in Mathematica 7

*Sat Nov 22 02:59:38 CET 2008* [seqfan] Re: Integer Sequence Analysis in Mathematica 7

*Sat Nov 22 02:59:07 CET 2008* [seqfan] Re: Integer Sequence Analysis in Mathematica 7

*Sat Nov 22 02:54:35 CET 2008* [seqfan] Re: Integer Sequence Analysis in Mathematica 7

*Sat Nov 22 02:45:24 CET 2008* [seqfan] Re: Integer Sequence Analysis in Mathematica 7

*Sat Nov 22 02:45:03 CET 2008* [seqfan] Re: Integer Sequence Analysis in Mathematica 7

*Sat Nov 22 02:28:08 CET 2008* [seqfan] Re: Integer Sequence Analysis in Mathematica 7

*Sat Nov 22 01:09:03 CET 2008* [seqfan] Re: Integer Sequence Analysis in Mathematica 7

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

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