A036978 Numbers for which the "describe what you see" transform A045918 produces a prime.

1, 3, 7, 9, 17, 23, 27, 33, 39, 51, 63, 69, 81, 93, 99, 111, 113, 121, 127, 133, 137, 161, 193, 199, 203, 209, 223, 233, 271, 299, 301, 311, 313, 323, 331, 343, 359, 361, 367, 371, 373, 377, 431, 433, 439, 441, 447, 451, 463, 469, 477, 479, 481, 497

Offset

1,2

Links

Table of n, a(n) for n=1..54.

Example

E.g. 33 -> "Two threes" -> 23, which is prime.

Prog

(PARI) for(n=1, 999, isprime(A045918(n)) & print1(n", "))  \\ M. F. Hasler, Jan 27 2012

Crossrefs

Cf. A036979, A045918.

Sequence in context: A117583 A126106 A064194 * A079464 A036976 A230116

Adjacent sequences: A036975 A036976 A036977 * A036979 A036980 A036981

Keyword

nonn,base,easy

Author

G. L. Honaker, Jr.

Extensions

Corrected by inserting the missing a(19)=127 by M. F. Hasler, Jan 27 2012

Status

approved