OFFSET
0,3
COMMENTS
A generalization of ordinary Stirling set numbers to multisets that contain some m instances each of n elements, here we have m=4.
REFERENCES
F. Harary and E. Palmer, Graphical Enumeration, Academic Press, 1973.
LINKS
Marko Riedel et al., Number of ways to partition a multiset into k non-empty multisets, Mathematics Stack Exchange.
EXAMPLE
The triangular array starts:
[0]: 1
[1]: 1, 2, 1, 1;
[2]: 1, 12, 29, 32, 21, 10, 3, 1;
[3]: 1, 62, 513, 1399, 1857, 1513, 855, 364, 119, 31, 6, 1;
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Marko Riedel, Nov 28 2022
STATUS
approved