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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

Table of n, a(n) for n=0..16.

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 A133800

Adjacent sequences:  A263855 A263856 A263857 * A263859 A263860 A263861

KEYWORD

nonn,tabf,more

AUTHOR

Christian Stump, Oct 28 2015

STATUS

approved

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Last modified October 15 13:01 EDT 2018. Contains 316236 sequences. (Running on oeis4.)