A073616 Consider Pascal's triangle A007318; a(n) = sum of the smallest divisors of terms of the n-th row which are greater than 1.

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

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: A263981 A362936 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