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Monotonically increasing sequence of least positive integers, a(1)=1, such that the self-convolution produces all squares.
1

%I #4 Mar 30 2012 18:36:38

%S 1,2,6,20,40,42,54,90,168,236,406,712,1094,1602,2240,2970,3690,4874,

%T 5008,5710,8338,9714,10496,11314,12812,19924,27678,37748,49142,55996,

%U 71438,92420,104866,110158,128642,143030,151098,158264,208234,213902

%N Monotonically increasing sequence of least positive integers, a(1)=1, such that the self-convolution produces all squares.

%F A087151(n)^2 = sum(k=1, n, a(k)*a(n-k+1)).

%Y Cf. A087151.

%K nonn

%O 1,2

%A _Paul D. Hanna_, Aug 19 2003