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A263858 Triangle read by rows: T(n,k) (n>=0, k>=1) is the number of posets with n elements and k maximal chains. 1
1, 1, 1, 1, 1, 3, 1, 1, 7, 6, 2, 1, 13, 25, 18, 4, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,6
COMMENTS
Row sums give A000112.
LINKS
FindStat - Combinatorial Statistic Finder, The number of maximal chains in a poset.
EXAMPLE
Triangle begins:
1,
1,
1,1,
1,3,1,
1,7,6,2,
1,13,25,18,4,2,
...
CROSSREFS
Cf. A000112.
Sequence in context: A218577 A193387 A185982 * A263862 A263861 A357940
KEYWORD
nonn,tabf,more
AUTHOR
Christian Stump, Oct 28 2015
STATUS
approved

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Last modified March 28 16:12 EDT 2024. Contains 371254 sequences. (Running on oeis4.)