A026470 a(n) = least positive integer > a(n-1) and not a(i)^2 + a(j)^2 for 1<=i<=j<=n.

2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 16, 17, 19, 21, 22, 23, 24, 26, 27, 28, 30, 31, 33, 35, 36, 37, 38, 39, 42, 43, 44, 46, 47, 48, 49, 51, 54, 55, 56, 57, 59, 60, 62, 63, 64, 66, 67, 68, 69, 70, 71, 73, 75, 76, 77, 78, 79, 80

Offset: 1

Author

Clark Kimberling

Keywords

• nonn

Extensions

Corrected by Franklin T. Adams-Watters, Oct 25 2006