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

 

Logo

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!)
A011814 M-sequences from multicomplexes on 4 variables with all monomials of degree 6 but none of degree larger than n. 0
0, 0, 0, 0, 0, 0, 1, 121, 9274, 588336, 34169279, 1910015056, 105715598909, 5894822718103, 334864912935350, 19523280973963941, 1174121560958610835, 73092687563740003227, 4721840282194948355236 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,8

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..18.

FORMULA

a(n) = Sum_{k=6..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: A212802 A272775 A018849 * A238320 A144766 A277946

Adjacent sequences:  A011811 A011812 A011813 * A011815 A011816 A011817

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 3 14:51 EST 2020. Contains 338906 sequences. (Running on oeis4.)