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A111238 Indices n where A109890(n) is prime. 1
2, 3, 9, 22, 23, 24, 31, 39, 40, 43, 44, 47, 48, 49, 50, 58, 59, 66, 67, 70, 76, 81, 84, 88, 89, 97, 98, 100, 119, 122, 123, 130, 131, 138, 139, 144, 145, 150, 151, 152, 163, 168, 174, 178, 179, 185, 197, 200, 204, 207, 217, 218, 221, 225, 226, 227 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

CROSSREFS

Sequence in context: A324614 A141505 A111360 * A057832 A089421 A151825

Adjacent sequences:  A111235 A111236 A111237 * A111239 A111240 A111241

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Oct 30 2005

STATUS

approved

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Last modified September 25 15:49 EDT 2020. Contains 337344 sequences. (Running on oeis4.)