A368073 - OEIS

%I #5 Dec 31 2023 00:19:19

%S 0,0,0,1,0,0,0,0,1,0,0,0,1,0,0,1,0,0,0,0,0,0,0,0,2,0,0,0,1,0,0,0,0,0,

%T 0,1,0,0,0,0,1,0,0,0,0,0,0,0,1,1,0,0,0,1,0,0,0,0,0,0,1,0,0,1,0,0,0,0,

%U 0,0,0,0,0,0,0,0,1,0,0,0,1,0,0,0,1,1,0,0,0,1,0,0,0,0,0,0,0,0,0,1

%N Number of representations of n as the difference of two positive square pyramidal numbers.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/SquarePyramidalNumber.html">Square Pyramidal Number</a>

%e a(25) = 2: 25 = 30 - 5 = 55 - 30.

%Y Cf. A000330, A100073, A296338, A368072.

%K nonn

%O 1,25

%A _Ilya Gutkovskiy_, Dec 10 2023