A253916 Numbers that can be represented as both x^y + y and b^c + b + c, for some b, c, x, y > 1.

264, 1334, 4108, 373323, 6436371, 387420507, 1099511627816

Offset: 1

Author

Alex Ratushnyak, Jan 18 2015

Keywords

• nonn
• hard
• more

Comments

Intersection of A099225 and A253775.

Examples

			264 is in the list since 264 = 2^8 + 8 and 264 = 4^4 + 4 + 4.
a(2) = 1334 = 11^3 + 3 = 36^2 + 36 + 2.
		

Crossrefs

Cf. A099225, A253775, A253914, A253917.