

A073616


Consider Pascal's triangle A007318; a(n) = sum of the smallest divisors of terms of the nth row which are greater than 1.


0



1, 2, 4, 8, 8, 16, 14, 32, 16, 20, 22, 48, 26, 56, 50, 52, 32, 64, 38, 76, 42, 48, 54, 136, 50, 64, 70, 68, 62, 124, 74, 156, 64, 68, 70, 88, 74, 148, 114, 112, 82, 168, 90, 200, 126, 108, 122, 292, 98, 112, 114, 124, 118, 244, 122, 144, 118, 128, 130, 352, 134, 276, 262
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OFFSET

0,2


LINKS

Table of n, a(n) for n=0..62.


EXAMPLE

Fifth row of Pascal's triangle is 1, 5, 10,10, 5, 1 and the corresponding smallest divisors are 1,5,2,2,5,1 with sum 16. Hence a(5) = 16.


CROSSREFS

Sequence in context: A181533 A263981 A088244 * A076735 A192097 A132720
Adjacent sequences: A073613 A073614 A073615 * A073617 A073618 A073619


KEYWORD

nonn


AUTHOR

Amarnath Murthy, Aug 07 2002


EXTENSIONS

More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Mar 22 2003


STATUS

approved



