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Search: id:A088903
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| A088903 |
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Primes P such that P and P+2 are twin primes and P = p(n)# + p(m) with p(n) < p(m) < p(n+1)^2, or 0 if no such prime P for n, p(n)# = ith-primorial, p(m)= ith-prime ( p(m), p(m+1) twin primes ). |
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+0
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| 5, 11, 17, 41, 59, 71, 227, 239, 269, 281, 311, 2339, 2381, 30089, 30137, 30269, 510551, 510581, 510611, 510617, 510707, 9699731, 9699887, 9699917, 223093511, 6469693331, 6469693511, 6469693661, 6469694039, 6469694057
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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First 0 is at n=41 p(n)=179, then at n=48, 49, 55, 63, 64......
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EXAMPLE
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p(8)# + 41 = 9699731, 9699733 are twin primes ( as 41, 43 )
p(8)# + 197 = 9699887, 9699889 are twin primes ( as 197, 199 )
p(8)# + 227 = 9699917, 9699919 are twin primes ( as 227, 229 )
p(8)=19#=2*3*5*7*11*13*17*19
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CROSSREFS
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Sequence in context: A030468 A085634 A157478 this_sequence A094205 A136091 A022004
Adjacent sequences: A088900 A088901 A088902 this_sequence A088904 A088905 A088906
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KEYWORD
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base,nonn
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AUTHOR
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Pierre CAMI (colettecami(AT)aol.com), Nov 29 2003
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