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A136292 revision #1

A136292

Primes of the form a^a + b^b + c^c + d^d + e^e.

5, 11, 17, 31, 37, 43, 83, 89, 109, 263, 269, 521, 541, 547, 593, 773, 1051, 3181, 3187, 3413, 3691, 6763, 9377, 9403, 9887, 12527, 46663, 46993, 49787, 50549, 52937, 53189, 93851, 96697, 99563, 139999, 823547, 823553, 823573, 823651, 823831

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..41.

FORMULA

A000040 INTERSECTION {A000312(a) + A000312(b) + A000312(c) + A000312(d) + A000312(e)}.

EXAMPLE

a(1) = 5 = 1^1 + 1^1 + 1^1 + 1^1 + 1^1.

a(2) = 11 = 1^1 + 1^1 + 1^1 + 2^2 + 2^2.

a(3) = 17 = 1^1 + 2^2 + 2^2 + 2^2 + 2^2.

a(4) = 31 = 1^1 + 1^1 + 1^1 + 1^1 + 3^3.