A075453 Numerator of 1/pp(n) + 1/pp(n+1), where pp(n) = A001597(n-1) is the n-th perfect power.

5, 3, 17, 25, 41, 52, 59, 17, 85, 113, 145, 181, 221, 246, 253, 17, 313, 365, 103, 49, 52, 499, 545, 613, 667, 704, 761, 841, 925, 249, 1041, 1105, 1201, 1301, 1405, 1513, 1625, 1741, 1861, 1961, 253, 2113, 2245, 2381, 2521, 2627, 2700, 2813, 2965, 3121

Offset: 1

Author

Zak Seidov, Oct 11 2002

Keywords

• easy
• nonn
• frac

Examples

			a(2) = 3 because 1/pp(2) + 1/pp(3) = 1/4 + 1/8 = 3/8.
		

Crossrefs

Cf. A001597.

Extensions

Edited by Dean Hickerson, Oct 15 2002