2,2

A051442(n) = n^(n+1)+(n+1)^n. Odd prime p divides A051442(p-2).

a(n) = A051442[ Prime[n] - 2 ]/Prime[n] for n>1.

Table[((Prime[n]-2)^(Prime[n]-1)+(Prime[n]-1)^(Prime[n]-2))/Prime[n], {n, 2, 15}]

Cf. A051442.

Sequence in context: A091751 A055559 A144233 this_sequence A033519 A103656 A028459

Adjacent sequences: A125071 A125072 A125073 this_sequence A125075 A125076 A125077

nonn

Alexander Adamchuk (alex(AT)kolmogorov.com), Nov 18 2006