A133662 - OEIS

%I #12 Jan 14 2023 08:44:09

%S 2,3,5,10,27,38,120,258,907,2030,3225,8295,15850,80642,378295,1049868,

%T 3031570,12565348,34530254,122586800,415026860,1454069870,4870827425,

%U 18129394322,77805478498

%N Lexically least increasing sequence such that the sum of any nonempty subsequence is not a square.

%C a(26) <= 299244596987. - _Donovan Johnson_, Jan 30 2011

%e 10 is here because none of 10, 10+2, 10+3, 10+5, 10+2+3, 10+2+5, 10+3+5 and 10+2+3+5 are square numbers.

%Y Cf. A064776.

%K nonn,more

%O 1,1

%A _Randy L. Ekl_, Dec 28 2007

%E Edited by _Don Reble_, Dec 30 2007

%E Definition corrected by _Don Reble_, Jan 01 2008

%E a(23)-a(25) from _Donovan Johnson_, Jan 30 2011