A032665 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A032665

Digit '2' concatenated with a(n) is a prime.

3, 9, 11, 23, 27, 29, 33, 39, 41, 51, 57, 63, 69, 71, 77, 81, 83, 93, 111, 113, 129, 131, 137, 141, 143, 153, 161, 179, 203, 207, 213, 221, 237, 239, 243, 251, 267, 269, 273, 281, 287, 293, 297, 309, 311, 333, 339, 341, 347, 351, 357, 371, 377, 381, 383, 389

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Seiichi Manyama, Table of n, a(n) for n = 1..10000

CROSSREFS

Sequence in context: A331029 A105949 A302422 * A331832 A032915 A019080

Adjacent sequences: A032662 A032663 A032664 * A032666 A032667 A032668

KEYWORD

nonn,base

AUTHOR

Patrick De Geest, May 15 1998

STATUS

approved