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Main diagonal of triangle A074135.
1

%I #3 Dec 05 2013 19:55:33

%S 1,4,7,13,18,21,28,40,49,64,75,81,94,115,130,138,155,182,201,211,232,

%T 265,288,300,325,364,391,433,462,477,508,556,589,606,641,695,732,751,

%U 790,850,891,912,955,1021,1066,1089,1136,1208,1257,1282,1333,1411,1464

%N Main diagonal of triangle A074135.

%Y Cf. A074135.

%K nonn,easy,less

%O 1,2

%A _Amarnath Murthy_, Aug 27 2002