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A103851 Numbers n such that 2*P(n)+1, 2*P(n+1)+1 and 2*P(n+2)-1 are also consecutive primes with P(i)=i-th prime. 1
2, 119, 372, 814, 4350, 9797, 16625, 16729, 40224, 45191, 48121, 63137, 71520, 83264, 89744, 94166, 103551, 109538, 111283, 113690, 232363, 265101, 268661, 269466, 302024, 316847, 329793, 333947, 340910, 352997, 380914, 381169, 384459 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..33.

EXAMPLE

2*3+1=5, 2*5+1=7, 2*7-1=13; 3 5 7 are consecutive primes as are 5 7 13 so a(1)=2 as 3=P(2)

CROSSREFS

Cf. A103852.

Sequence in context: A013511 A013507 A013476 * A024030 A221231 A243512

Adjacent sequences:  A103848 A103849 A103850 * A103852 A103853 A103854

KEYWORD

nonn

AUTHOR

Pierre CAMI, Feb 18 2005

EXTENSIONS

Corrected by T. D. Noe, Nov 02 2006

STATUS

approved

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Last modified June 22 15:13 EDT 2021. Contains 345383 sequences. (Running on oeis4.)