A248627 Index at which the first n appears in A248625 = least nonnegative sequence with no AP (a(n), a(n+d), a(n+2d)).

0, 2, 94, 7, 21, 120, 143, 23, 26, 59, 66, 72, 65, 78, 162, 195, 147, 149, 219, 79, 180, 172, 177, 196, 212, 202, 193, 201, 260, 373, 303, 386, 644, 294, 446, 378, 289, 419, 361, 505, 514, 877, 519, 835, 940, 494, 593, 753, 883, 957, 500, 484, 560, 406, 466

Offset: 0

Author

M. F. Hasler, Oct 10 2014

Keywords

• nonn

Crossrefs

Cf. A248625, A229037, A241752.

Formula

a(n) = A241752(n)-1.