Denominator of the harmonic mean of the first n heptagonal numbers.

A247115

Denominator of the harmonic mean of the first n heptagonal numbers.

Terms

    a(0) =1a(1) =4a(2) =151a(3) =1315a(4) =73396a(5) =667109a(6) =10749479a(7) =399851303a(8) =401511863a(9) =18933826729a(10) =246810236317

External references