A340497 Index where 2*n first appears in A340488.

1, 6, 16, 21, 56, 61, 71, 76, 216, 221, 231, 236, 271, 276, 286, 291, 856, 861, 871, 876, 911, 916, 926, 931, 1071, 1076, 1086, 1091, 1126, 1131, 1141, 1146, 3416, 3421, 3431, 3436, 3471, 3476, 3486, 3491, 3631, 3636, 3646, 3651, 3686, 3691, 3701, 3706, 4271, 4276, 4286

Offset: 0

Author

N. J. A. Sloane, Jan 11 2021

Keywords

• nonn

Comments

A bisection of A340494. Note that there is a conjectured g.f. for A340494.

Links

• N. J. A. Sloane, Table of n, a(n) for n = 0..4095

Crossrefs

Cf. A340488, A340494.