A074968 a(n) = minimal m such that Sum [ Prime[k],{k,1,m}] >= Prime[n]*Prime[m].

3, 5, 10, 15, 25, 28, 38, 41, 51, 64, 69, 82, 89, 94, 104, 116, 130, 133, 147, 156, 160, 173, 181, 195, 211, 224, 227, 234, 237, 246, 276, 286, 300, 303, 323, 330, 341, 353, 361, 377, 390, 392, 412, 415, 426, 431, 459, 485, 493, 496, 504, 516, 520, 542, 554

Offset

1,1

Links

Table of n, a(n) for n=1..55.

Crossrefs

Cf. A075703.

Sequence in context: A023602 A024452 A238620 * A308826 A090491 A126728

Adjacent sequences: A074965 A074966 A074967 * A074969 A074970 A074971

Keyword

nonn,easy

Author

Robert G. Wilson v, Oct 04 2002

Status

approved