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A011811 M-sequences from multicomplexes on 4 variables with all monomials of degree 3 but none of degree larger than n. 0
0, 0, 0, 1, 36, 911, 20807, 468557, 10840767, 263427401, 6809977027, 188790121348, 5641465341098, 182310843939953, 6383884849646341, 242427118777826690, 9983217876902418734, 445432587418516596408 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

REFERENCES

S. Linusson, The number of M-sequences and f-vectors, Combinatorica, 19 (1999), 255-266.

LINKS

Table of n, a(n) for n=0..17.

FORMULA

a(n) = Sum_{k=3..n} L(4, n, k) where L(p, n, k) = Sum_{i=k..n} L(p-1, n, i) * L(p, i-1, k-1) with boundary conditions L(p, n, n) = L(p, n, -1) = 1 (p >= 0, n >= -1), L(0, n, k) = 0 (0 <= k < n) [from Linusson]. - Sean A. Irvine, Jun 28 2018

CROSSREFS

Sequence in context: A233003 A075916 A062150 * A167250 A218177 A107398

Adjacent sequences:  A011808 A011809 A011810 * A011812 A011813 A011814

KEYWORD

nonn

AUTHOR

Svante Linusson (linusson(AT)math.kth.se)

EXTENSIONS

Offset corrected by Sean A. Irvine, Jun 28 2018

STATUS

approved

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Last modified November 29 12:16 EST 2020. Contains 338766 sequences. (Running on oeis4.)