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A075453
Numerator of 1/pp(n) + 1/pp(n+1), where pp(n) = A001597(n-1) is the n-th perfect power.
1
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
1,1
EXAMPLE
a(2) = 3 because 1/pp(2) + 1/pp(3) = 1/4 + 1/8 = 3/8.
CROSSREFS
Cf. A001597.
Sequence in context: A092893 A133172 A363686 * A349118 A073845 A169697
KEYWORD
easy,nonn,frac
AUTHOR
Zak Seidov, Oct 11 2002
EXTENSIONS
Edited by Dean Hickerson, Oct 15 2002
STATUS
approved