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A340498 Where 2^n appears in A340488 for the first time. 1
3, 6, 16, 56, 216, 856, 3416, 13656, 54616, 218456, 873816, 3495256, 13981016, 55924056, 223696216, 894784856, 3579139416, 14316557656, 57266230616, 229064922456, 916259689816 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

A subsequence of A340494 and A340497. Note that A340494 has a conjectured g.f.

LINKS

Table of n, a(n) for n=0..20.

Rémy Sigrist, C program for A340498

PROG

(C) See Links section.

CROSSREFS

Cf. A340488, A340494-A340497.

Sequence in context: A300355 A274294 A201969 * A288850 A185629 A107885

Adjacent sequences:  A340495 A340496 A340497 * A340499 A340500 A340501

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Jan 11 2021

EXTENSIONS

a(8)-a(20) from Rémy Sigrist, Jan 11 2021

STATUS

approved

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Last modified June 13 09:02 EDT 2021. Contains 344981 sequences. (Running on oeis4.)