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A253056 A253055, sorted. 3
15, 27, 35, 39, 45, 49, 51, 55, 57, 63, 65, 69, 75, 77, 81, 87, 91, 99, 105, 117, 119, 121, 123, 125, 133, 135, 141, 143, 145, 147, 153, 155, 159, 161, 165, 169, 171, 175, 183, 185, 187, 189, 195, 201, 203, 205, 207, 209, 215, 217, 219, 221, 225, 231, 235, 243 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

It would be nice to have a characterization of these numbers that is independent of A098550.

LINKS

Table of n, a(n) for n=1..56.

CROSSREFS

Cf. A098550, A253055, A251545.

Sequence in context: A131541 A080945 A080946 * A091236 A307854 A053177

Adjacent sequences:  A253053 A253054 A253055 * A253057 A253058 A253059

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jan 01 2015

STATUS

approved

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Last modified December 1 12:40 EST 2021. Contains 349429 sequences. (Running on oeis4.)