OFFSET
1,1
FORMULA
Let prime(i) = i-th prime, let twin(n) = (P, Q) be n-th pair of twin primes; sequence gives prime(Q)*Q.
EXAMPLE
The 3rd pair of twin primes is twin(3) = (11,13), prime(13) = 41, a(3) = 41*13 = 533.
MATHEMATICA
#*Prime[#]&/@(Transpose[Select[Partition[Prime[Range[200]], 2, 1], Last[#]- First[#] ==2&]][[2]]) (* Harvey P. Dale, Jun 04 2014 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Cino Hilliard, Mar 04 2003
STATUS
approved