The On-Line Encyclopedia of Integer Sequences (OEIS)

A156300 revision #4

A156300

Primes p such that 4*p-5 is a prime number

2, 3, 7, 13, 19, 43, 61, 67, 79, 97, 109, 127, 151, 163, 181, 211, 223, 229, 277, 307, 331, 373, 379, 397, 457, 463, 523, 601, 607, 613, 673, 727, 733, 751, 757, 853, 883, 907, 919, 967, 1021, 1033, 1069, 1117, 1171, 1201, 1231, 1237, 1321, 1327, 1381, 1399

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..52.

EXAMPLE

For p=2, 4p-5=3; p=19, 4p-5=71; p=127, 4p-5=503

CROSSREFS

Cf. A156287, A156288

Sequence in context: A019383 A249749 A171817 * A067834 A070754 A325875

Adjacent sequences: A156297 A156298 A156299 * A156301 A156302 A156303

KEYWORD

nonn

AUTHOR

Vincenzo Librandi, Feb 07 2009

STATUS

approved