A011808 - OEIS

A011808

M-sequences from multicomplexes on at most 11 variables with no monomial of degree more than n-1.

2, 13, 299, 19318, 3167606, 1216716022, 1016289045634, 1729283934497328, 5667546539054689443, 34105149235238728913664, 361714725652426571177689094, 6527156272709807559816283769206

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OFFSET

1,1

COMMENTS

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

LINKS

Table of n, a(n) for n=1..12.

FORMULA

a(n) = Sum_{k=-1..n} L(11, 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

Cf. A007065, A007625, A011804, A011805, A011806, A011807, A011809.

Sequence in context: A351022 A012955 A357342 * A011841 A013106 A134485

Adjacent sequences: A011805 A011806 A011807 * A011809 A011810 A011811

KEYWORD

nonn

AUTHOR

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

EXTENSIONS

Offset corrected by Sean A. Irvine, Jun 28 2018

STATUS

approved