a(n) is the smallest number k whose symmetric representation of sigma(k) consists of n regions (or parts) and whose areas are strictly decreasing towards the diagonal.

A338534

a(n) is the smallest number k whose symmetric representation of sigma(k) consists of n regions (or parts) and whose areas are strictly decreasing towards the diagonal.

Terms

    a(0) =1a(1) =3a(2) =9a(3) =21a(4) =81a(5) =147a(6) =441a(7) =903a(8) =2499a(9) =6069a(10) =15351a(11) =29095a(12) =80367a(13) =153065a(14) =366025a(15) =643885

External references