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A118279 Conjectured number of numbers that are not the sum of three n-gonal numbers, or -1 if infinite. 10

%I #4 Mar 30 2012 17:34:56

%S 0,-1,210,638,1348,-1,5282,7687,12453,-1,24813,-1,45338,-1,63702,

%T 84764,109613,-1,162687,155879,224244,-1,303049,-1,353690,-1,522262,

%U 541796,651844,-1,817053

%N Conjectured number of numbers that are not the sum of three n-gonal numbers, or -1 if infinite.

%C See A118278 for the conjectured largest number that is not the sum of three n-gonal numbers.

%Y Cf. A118278-A118285.

%K sign

%O 3,3

%A _T. D. Noe_, Apr 21 2006

%E a(22)-a(33) from _Donovan Johnson_, Apr 17 2010

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Last modified May 13 07:22 EDT 2024. Contains 372498 sequences. (Running on oeis4.)