A364150 - cp's OEIS frontend

A364150 a(n) is the smallest positive integer which can be represented as the sum of distinct positive quarter-squares in exactly n ways, or -1 if no such integer exists.

%I A364150 #6 Jul 16 2023 10:34:39
%S A364150 1,6,12,16,21,22,27,33,31,32,36,37,41,-1,42,43,47,-1,49,48,-1,54,52,
%T A364150 -1,60,59,57,-1,58,61,62,63,65,64,-1,-1,69,67,70,-1,68,72,-1,75,-1,73,
%U A364150 76,74,-1,-1,-1,77,80,78,79,81,-1,82,-1,-1
%N A364150 a(n) is the smallest positive integer which can be represented as the sum of distinct positive quarter-squares in exactly n ways, or -1 if no such integer exists.
%Y A364150 Cf. A002620, A097563, A197081.
%K A364150 sign
%O A364150 1,2
%A A364150 _Ilya Gutkovskiy_, Jul 10 2023

cp's OEIS Frontend

A364150 a(n) is the smallest positive integer which can be represented as the sum of distinct positive quarter-squares in exactly n ways, or -1 if no such integer exists.