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Search: id:A011821
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A011821 M-sequences m_0,...,m_5 with m_1 < n. +0
1
2, 7, 64, 877, 10742, 102050, 753994, 4486435, 22285884, 95264798, 359074648, 1216716022, 3763991016, 10763615106, 28741372964, 72261453121, 172248589406, 391536067037, 852876877928, 1787799809335, 3619382778994 (list; graph; listen)
OFFSET

1,1

COMMENT

Apparently a polynomial of degree 15: n^15/32659200 etc., compare A011829, (frank.ellermann(AT)t-online.de).

REFERENCES

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

CROSSREFS

Cf. A011819 ... A011825, A011829.

Sequence in context: A153694 A100523 A006506 this_sequence A117263 A046855 A116985

Adjacent sequences: A011818 A011819 A011820 this_sequence A011822 A011823 A011824

KEYWORD

nonn

AUTHOR

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

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.


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