1,1

This is to A067377 as A001358 is to A000040.

Table of n, a(n) for n=1..55.

A001358 INTERSECTION A135363.

a(1) = 10 = 4 + 6 = 2 * 5.

a(2) = 15 = 6 + 9 = 3 * 5.

a(3) = 25 = 6 + 9 + 10 = 5^2.

Cf. A001358, A067377, A135363.

Sequence in context: A272779 A173477 A091022 * A100916 A001750 A231643

Adjacent sequences: A133369 A133370 A133371 * A133373 A133374 A133375

easy,nonn

Jonathan Vos Post, Dec 21 2007

More terms from R. J. Mathar, Jan 13 2008

approved