Column 1 of triangle A158835.

A158837

Column 1 of triangle A158835.

Terms

    a(0) =1a(1) =2a(2) =11a(3) =94a(4) =1072a(5) =15212a(6) =257777a(7) =5074738a(8) =113775490a(9) =2861365660a(10) =79763482974

External references