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A140138 Numbers n such that A140080(n) = 2. 4
5, 10, 17, 20, 34, 40, 65, 68, 80, 130, 136, 160, 257, 260, 272, 320, 341, 514, 520, 544, 640, 682, 1025, 1028, 1040, 1088, 1109, 1280, 1301, 1349, 1361, 1364, 2050, 2056, 2080, 2176, 2218, 2560, 2602, 2698, 2722, 2728, 4097, 4100, 4112, 4160 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..46.

CROSSREFS

Cf. A140080, A140137.

Sequence in context: A313949 A313950 A313951 * A313952 A313953 A313954

Adjacent sequences:  A140135 A140136 A140137 * A140139 A140140 A140141

KEYWORD

nonn

AUTHOR

Nadia Heninger and N. J. A. Sloane, Jun 08 2008

STATUS

approved

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Last modified July 4 12:18 EDT 2020. Contains 335448 sequences. (Running on oeis4.)