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Search: id:A094271
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A094271 First column of triangle A094270. Equals A094272(n)-(n-1). +0
5
1, 2, 4, 7, 12, 47, 1170, 687371, 236241851618, 2197451321740962081109754668237121, 2414396155710550624720051944524837499100253655538086242554948251365 (list; graph; listen)
OFFSET

1,2

LINKS

Martin Fuller, Table of n, a(n) for n = 1..12

FORMULA

a(n)=A094270(n,1). - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 23 2006

EXAMPLE

Product of the terms of the 4-th row = 7*8*9*10 = 5040. Product of the terms of the 5-th row = 12*13*14*15*16 = 524160 = 104*5040.

CROSSREFS

Cf. A094270, A094272, A094273, A094274.

Sequence in context: A141017 A027945 A079800 this_sequence A018414 A002152 A002466

Adjacent sequences: A094268 A094269 A094270 this_sequence A094272 A094273 A094274

KEYWORD

nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 27 2004

EXTENSIONS

More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 23 2006

Edited by Martin Fuller (martin_n_fuller(AT)btinternet.com), Jun 13 2007

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.


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