A132937 Concatenation of first n odd isolated primes.
23, 2337, 233747, 23374753, 2337475367, 233747536779, 23374753677983, 2337475367798389, 233747536779838997, 233747536779838997113, 233747536779838997113127, 233747536779838997113127131
Offset: 1
Links
- Vincenzo Librandi, Table of n, a(n) for n = 1..250
- C. K. Caldwell, The Prime Pages.
- Omar E. Pol, Determinacion geometrica de los numeros primos y perfectos.
Programs
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Mathematica
With[{ips=Transpose[Select[Partition[Prime[Range[2,50]],3,1], Min[ Differences[#]]>2&]][[2]]},Table[FromDigits[Flatten[ IntegerDigits/@ Take[ips,n]]],{n,Length[ips]}]] (* Harvey P. Dale, Sep 17 2013 *)