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A011813 M-sequences from multicomplexes on 4 variables with all monomials of degree 5 but none of degree larger than n. 0
0, 0, 0, 0, 0, 1, 85, 4699, 219836, 9595906, 409867615, 17589965248, 770635739545, 34813976611381, 1632431803786770, 79803825438459069, 4080007508711841376, 218627996809373217066, 12298853131687073056568 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,7
REFERENCES
S. Linusson, The number of M-sequences and f-vectors, Combinatorica, 19 (1999), 255-266.
LINKS
FORMULA
a(n) = Sum_{k=5..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: A158796 A201796 A093285 * A006106 A015338 A181015
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 March 29 10:44 EDT 2024. Contains 371268 sequences. (Running on oeis4.)