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A086400 (1/p)*(M(p)-1) where p runs through the odd primes and M(p)=A001006(p) is the p-th Motzkin number. 0
1, 4, 18, 527, 3218, 138634, 957857, 49120018, 20473889132, 156766505690, 74324776, 203270, 4686290685410776, 37541445026997947, 2445882966702428971, 13279375056930183, 42712, 743757817682170309535791 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..18.

CROSSREFS

Sequence in context: A214189 A214240 A156522 * A082022 A114574 A295223

Adjacent sequences:  A086397 A086398 A086399 * A086401 A086402 A086403

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Sep 06 2003

STATUS

approved

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Last modified January 20 14:36 EST 2020. Contains 331094 sequences. (Running on oeis4.)