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A084445 Primes that cannot be written as 1+p+p^k, p prime and k>0. 1
2, 3, 17, 29, 37, 41, 43, 53, 61, 71, 73, 79, 89, 97, 101, 103, 109, 113, 127, 137, 139, 149, 151, 157, 163, 173, 181, 191, 193, 197, 199, 211, 223, 229, 233, 239, 241, 251, 257, 269, 271, 277, 281, 283, 293, 311, 313, 317, 331, 337, 349, 353, 367, 373, 379 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

A084440(a(n))=0.

LINKS

Table of n, a(n) for n=1..55.

CROSSREFS

Cf. A084441.

Sequence in context: A029876 A248716 A228201 * A215303 A215280 A219559

Adjacent sequences:  A084442 A084443 A084444 * A084446 A084447 A084448

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, May 26 2003

STATUS

approved

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Last modified September 28 20:57 EDT 2021. Contains 347717 sequences. (Running on oeis4.)