The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Please make a donation to keep the OEIS running. We are now in our 56th year. In the past year we added 10000 new sequences and reached almost 9000 citations (which often say "discovered thanks to the OEIS"). Other ways to donate

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 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 Adjacent sequences:  A011810 A011811 A011812 * A011814 A011815 A011816 KEYWORD nonn AUTHOR Svante Linusson (linusson(AT)math.kth.se) EXTENSIONS Offset corrected by Sean A. Irvine, Jun 28 2018 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

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