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Consider Pascal's triangle A007318; a(n) = sum of the smallest divisors of terms of the n-th row which are greater than 1.
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%I #5 Dec 02 2018 23:14:02

%S 1,2,4,8,8,16,14,32,16,20,22,48,26,56,50,52,32,64,38,76,42,48,54,136,

%T 50,64,70,68,62,124,74,156,64,68,70,88,74,148,114,112,82,168,90,200,

%U 126,108,122,292,98,112,114,124,118,244,122,144,118,128,130,352,134,276,262

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

%e 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.

%K nonn

%O 0,2

%A _Amarnath Murthy_, Aug 07 2002

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