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A087754 (C(2p,p)-2) / p^3 where p runs through the primes greater than 3. +0
1
2, 10, 530, 4734, 474986, 5153122, 676701794, 1232820800342, 15623119507746, 34472401720246110, 6163354867874693078, 83483882991733501114, 15658391111267929558466, 42132263940113324754864134 (list; graph; listen)
OFFSET

3,1

REFERENCES

R. P. Stanley, MIT Course OCW 18.S66, The Art of Counting, Spring 2003 Question 18.

LINKS

R. P. Stanley, MIT Course OCW 18.S66, The Art of Counting, Spring 2003

FORMULA

a(n) = A060842(n)/A000040(n)

EXAMPLE

a(6)=4734 since 13 is the sixth prime and (C(26,13)-2)/13^3 = (10400600-2)/2197 = 4734.

CROSSREFS

Sequence in context: A112449 A011824 A064300 this_sequence A128295 A089500 A028582

Adjacent sequences: A087751 A087752 A087753 this_sequence A087755 A087756 A087757

KEYWORD

nonn

AUTHOR

Henry Bottomley (se16(AT)btinternet.com), Oct 02 2003

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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