Partial sums of the numbers in sequence A080253.

A217484

Partial sums of the numbers in sequence A080253.

Terms

    a(0) =1a(1) =4a(2) =21a(3) =168a(4) =1865a(5) =26348a(6) =450205a(7) =9011152a(8) =206624529a(9) =5338349652a(10) =153408637349

External references