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%I #12 Jan 25 2016 17:23:51
%S 8,251,78376,1977405119,34524689549050,8650450444070886983,
%T 239081086135595395734136,257829867026393862843621801395
%N a(n) = Sum_{k = 1..n} prime(k)^prime(k + 1).
%e 2^3=8
%e 2^3+3^5=8+243=251
%e 2^3+3^5+5^7=8+243+78125=78376
%t P3[n_] := Sum[Prime[i]^Prime[i + 1], {i, 1, n}]; Table[P3[n], {n, 1, 8}]
%o (PARI) a(n) = sum(k=1, n, prime(k)^prime(k+1)); \\ _Michel Marcus_, Jan 25 2016
%Y Cf. A051674, A053089, A074745.
%K nonn
%O 1,1
%A _Vladimir Joseph Stephan Orlovsky_, May 07 2008
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