Numbers k for which there exists m such that the sum from 1 to m and the sum from m + 1 to k are both perfect squares.
A388659
Numbers k for which there exists m such that the sum from 1 to m and the sum from m + 1 to k are both perfect squares.
Terms
- a(0) =4a(1) =9a(2) =16a(3) =25a(4) =40a(5) =89a(6) =144a(7) =148a(8) =233a(9) =289a(10) =520a(11) =800a(12) =841a(13) =865a(14) =936a(15) =1360a(16) =3033a(17) =4513a(18) =4900a(19) =4904a(20) =5044a(21) =5329a(22) =7929a(23) =9801a(24) =10953a(25) =11024a(26) =13000a(27) =14841a(28) =17680a(29) =18793
External references
- oeis: A388659