A125074 A051442[p-2]/p for p = Prime[n]>2.

1, 29, 3343, 407889491, 298572057493, 454195874136455153, 855210316410864290683, 6009294624226370518329498431, 453664960868214198206218533253007296517

Offset

2,2

Comments

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

Links

Harvey P. Dale, Table of n, a(n) for n = 2..76

Formula

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

Mathematica

Table[((Prime[n]-2)^(Prime[n]-1)+(Prime[n]-1)^(Prime[n]-2))/Prime[n], {n, 2, 15}]
((#-2)^(#-1)+(#-1)^(#-2))/#&/@Prime[Range[2, 10]] (* Harvey P. Dale, Dec 24 2025 *)

Crossrefs

Cf. A051442.

Sequence in context: A305138 A091751 A144233 * A033519 A260844 A267955

Adjacent sequences: A125071 A125072 A125073 * A125075 A125076 A125077

Keyword

nonn

Author

Alexander Adamchuk, Nov 18 2006

Status

approved