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Search: id:A087728
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| A087728 |
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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). |
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+0
4
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| 5, 17, 37, 577, 8101, 14401, 22501, 32401, 44101, 176401, 5336101, 48024901, 85377601, 341510401, 533610001, 129859329601, 12770402544901, 16679709446401, 94083986096101, 6021375110150401, 11384162317628101
(list; table; graph; listen)
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OFFSET
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0,1
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EXAMPLE
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Table begins:
5,17,
37,577,
8101,14401,22501,32401,
44101,176401,
5336101,48024901,85377601,341510401,533610001,
129859329601,
12770402544901,16679709446401
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PROGRAM
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(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 ", ")); ); ); }
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CROSSREFS
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Cf. A087714-A087716.
Sequence in context: A146850 A146428 A146235 this_sequence A072332 A127744 A122734
Adjacent sequences: A087725 A087726 A087727 this_sequence A087729 A087730 A087731
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KEYWORD
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nonn,tabl
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AUTHOR
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Pierre CAMI (colettecami(AT)aol.com), Sep 30 2003
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EXTENSIONS
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Edited by Ray Chandler (rayjchandler(AT)sbcglobal.net), Sep 30 2003
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