OFFSET
2,6
LINKS
W. G. Brown, Enumeration of non-separable planar maps, Canad. J. Math., 15 (1963), 526-545.
W. G. Brown, Enumeration of non-separable planar maps [Annotated scanned copy]
FORMULA
Reference gives generating functions.
EXAMPLE
Triangle begins:
1;
1, 1;
1, 1, 2;
1, 2, 3, 4;
1, 2, 8, 12, 14;
1, 3, 12, 30, 43, 49;
...
MAPLE
# uses function L(., .) from A046650
for n from 2 to 13 do
for m from n to 2 by -1 do
printf("%d, ", L(n, m)) ;
end do:
printf("\n") ;
end do: # R. J. Mathar, Apr 13 2019
CROSSREFS
KEYWORD
AUTHOR
EXTENSIONS
More terms from R. J. Mathar, Apr 13 2019
STATUS
approved