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M-sequences from multicomplexes on 4 variables with all monomials of degree 7 but none of degree larger than n.
1

%I #6 Jun 28 2018 17:58:50

%S 0,0,0,0,0,0,0,1,166,17084,1429000,107722408,7709260963,539697521271,

%T 37652839010763,2649928897359089,189683841710882135,

%U 13888624543485989550,1044391475357613415884

%N M-sequences from multicomplexes on 4 variables with all monomials of degree 7 but none of degree larger than n.

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

%F a(n) = Sum_{k=7..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

%K nonn

%O 0,9

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

%E Offset corrected by _Sean A. Irvine_, Jun 28 2018