

A105266


a(1)=1 and, for n>1, a(n) is the smallest integer greater than a(n1) such that no three terms x,y,z of the sequence, with x<y<z, satisfy zy=yx+1.


0



1, 2, 3, 7, 8, 9, 19, 20, 21, 25, 26, 27, 55, 56, 57, 61, 62, 63, 73, 74, 75, 79, 80, 81, 163, 164, 165, 169, 170, 171, 181, 182, 183, 187, 188, 189, 217, 218, 219, 223, 224, 225, 235, 236, 237, 241, 242, 243, 487, 488, 489, 493, 494, 495, 505, 506, 507, 511, 512
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