References to A001998

Bending a piece of wire of length n+1; walks of length n+1 on a tetrahedron; also non-branched catafusenes with a specified number of condensed hexagons.
1, 2, 4, 10, 25, 70, 196, 574, 1681, 5002, 14884, 44530, 133225, 399310, 1196836


3 seqfan posts

Fri Aug 20 18:23:01 CEST 2010    [seqfan] Re: Extending the superseeker
Fri Aug 20 14:23:50 CEST 2010    [seqfan] Re: Extending the superseeker
Sat Aug 14 01:05:54 CEST 2010    [seqfan] Extending the superseeker

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