Triangle of the normalized A142963 and A156919 sequences.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =5a(5) =1a(6) =1a(7) =15a(8) =18a(9) =1a(10) =1a(11) =37a(12) =129a(13) =58a(14) =1a(15) =1a(16) =83a(17) =646a(18) =877a(19) =179a(20) =1a(21) =1a(22) =177a(23) =2685a(24) =8030a(25) =5280a(26) =543a(27) =1a(28) =1a(29) =367