A379528 Number of compositions (ordered partitions) of 1 into {1/1^2, 1/2^2, 1/3^2, ..., 1/n^2}.

1, 2, 3, 97, 98, 40917543, 40917544, 2901109178066823, 81221415992592163051371926, 373220766236315864054296758124337507430, 373220766236315864054296758124337507431

Offset: 1

Author

Ilya Gutkovskiy, Dec 24 2024

Keywords

• nonn
• more

Links

• Index entries for sequences related to Egyptian fractions

Crossrefs

Cf. A000290, A020473, A038034, A348625, A378270, A378842.

Formula

a(p) = a(p-1) + 1 for p prime. - Chai Wah Wu, Dec 27 2024

Extensions

a(6)-a(11) from Alois P. Heinz, Dec 26 2024