A087728 Table read by rows where i-th row consists of primes P of the form P=(j*P(i)#)^2 +1 with 0 < j < P(i+1). Here P(i)# = A002110(i).

5, 17, 37, 577, 8101, 14401, 22501, 32401, 44101, 176401, 5336101, 48024901, 85377601, 341510401, 533610001, 129859329601, 12770402544901, 16679709446401, 94083986096101, 6021375110150401, 11384162317628101

Offset

0,1

Links

Table of n, a(n) for n=0..20.

Example

Table begins:
5,17,
37,577,
8101,14401,22501,32401,
44101,176401,
5336101,48024901,85377601,341510401,533610001,
129859329601,
12770402544901,16679709446401

Prog

(PARI) {for(i=1, 8, p=prod(j=1, i, prime(j)); for(j=1, prime(i+1)-1, c=(j*p)^2+1; if(isprime(c), print1(c ", ")); ); ); }

Crossrefs

Cf. A087714-A087716.

Sequence in context: A146850 A146428 A146235 * A072332 A212968 A127744

Adjacent sequences: A087725 A087726 A087727 * A087729 A087730 A087731

Keyword

nonn,tabf

Author

Pierre CAMI, Sep 30 2003

Extensions

Edited by Ray Chandler, Sep 30 2003

Status

approved