A376245
Lexicographically earliest sequence of positive integers a(1), a(2), ... such that for any n > 0, Sum_{k = 1..n} 1 / (a(k) * A376244(k)) < 1.
Original entry on oeis.org
1, 1, 1, 2, 2, 17, 177, 399089, 25009621311, 1875034732942983344228, 1539443127106211836190570031058344660910551, 4678021254342525951806601314996862405949898779699686841158030172103896860849760557451
Offset: 1
A376246
a(n) is the numerator of Sum_{k = 1..n} 1 / (A376244(k) * A376245(k)).
Original entry on oeis.org
1, 7, 47, 109, 823, 4757, 7582661, 3026164178509, 277505140475561534945603, 260165888480949800316206335248860247693882947, 1735545885361077128120249087863835952607412447268583818069629193850545735375261166814107
Offset: 1
A376247
a(n) is the denominator of Sum_{k = 1..n} 1 / (A376244(k) * A376245(k)).
Original entry on oeis.org
3, 12, 60, 120, 840, 4760, 7582680, 3026164178520, 277505140475561534945640, 260165888480949800316206335248860247693882960, 1735545885361077128120249087863835952607412447268583818069629193850545735375261166814160
Offset: 1
Showing 1-3 of 3 results.