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A340497 Index where 2*n first appears in A340488. 2


%S 1,6,16,21,56,61,71,76,216,221,231,236,271,276,286,291,856,861,871,

%T 876,911,916,926,931,1071,1076,1086,1091,1126,1131,1141,1146,3416,

%U 3421,3431,3436,3471,3476,3486,3491,3631,3636,3646,3651,3686,3691,3701,3706,4271,4276,4286

%N Index where 2*n first appears in A340488.

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

%H N. J. A. Sloane, <a href="/A340497/b340497.txt">Table of n, a(n) for n = 0..4095</a>

%Y Cf. A340488, A340494.

%K nonn

%O 0,2

%A _N. J. A. Sloane_, Jan 11 2021

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Last modified June 16 20:32 EDT 2021. Contains 345069 sequences. (Running on oeis4.)