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A340497 Index where 2*n first appears in A340488. 2
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

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.

Sequence in context: A037001 A118139 A087446 * A051808 A034053 A199988

Adjacent sequences:  A340494 A340495 A340496 * A340498 A340499 A340500

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jan 11 2021

STATUS

approved

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Last modified May 9 11:53 EDT 2021. Contains 343740 sequences. (Running on oeis4.)