OFFSET
1,2
COMMENTS
Row 1 is the number of matchings in P_n and row 2 is the number of matchings in G X P_n where G is a double edge. These choices give the best fit with the column linear recurrences.
LINKS
Andrew Howroyd, Table of n, a(n) for n = 1..435
Eric Weisstein's World of Mathematics, Stacked Prism Graph
EXAMPLE
Table starts:
======================================================================
m\n| 1 2 3 4 5 6 7
---|------------------------------------------------------------------
1 | 1 2 3 5 8 13 21 ...
2 | 3 12 47 185 728 2865 11275 ...
3 | 4 32 228 1655 11978 86731 627960 ...
4 | 7 108 1511 21497 305184 4334009 61545775 ...
5 | 11 342 9213 253880 6974078 191668283 5267252351 ...
6 | 18 1104 57536 3079253 164206124 8761336545 467431319920 ...
7 | 29 3544 356863 37071837 3834744194 396924243197 41080815923665 ...
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Andrew Howroyd, May 25 2017
STATUS
approved