a(n) = A343046(n, n).

Terms

a(0) =0a(1) =1a(2) =6a(3) =9a(4) =12a(5) =15a(6) =210a(7) =217a(8) =246a(9) =249a(10) =252a(11) =255a(12) =420a(13) =427a(14) =456a(15) =459a(16) =492a(17) =495a(18) =630a(19) =637a(20) =666a(21) =669a(22) =702a(23) =705a(24) =840a(25) =847a(26) =876a(27) =879a(28) =912a(29) =915