A127516 a(n) = numerator of sum{k=1 to n} 1/A127515(k).

1, 3, 11, 61, 137, 1019, 2143, 761, 7129, 7309, 7561, 85691, 88001, 89849, 1555153, 3169211, 1073857, 31456013, 31870133, 6465133, 150520187, 757839553, 10061458909, 3397059023, 65452148557, 66115706837, 66731868097, 67123970717

Offset

1,2

Comments

Every term is a noncomposite (1 or prime).

Links

Table of n, a(n) for n=1..28.

Crossrefs

Cf. A127515, A127517.

Sequence in context: A076475 A354417 A125556 * A228204 A095237 A185385

Adjacent sequences: A127513 A127514 A127515 * A127517 A127518 A127519

Keyword

frac,nonn

Author

Leroy Quet, Jan 17 2007

Extensions

Extended by Ray Chandler, Jan 22 2007

Status

approved