Array associated with "the Mysterious B Sequence", by antidiagonals.

Terms

a(0) =18a(1) =5a(2) =165a(3) =3a(4) =18a(5) =1333a(6) =2a(7) =8a(8) =56a(9) =10353a(10) =2a(11) =5a(12) =18a(13) =165a(14) =78958a(15) =1a(16) =3a(17) =9a(18) =38a(19) =472a(20) =596438a(21) =1a(22) =3a(23) =6a(24) =18a(25) =80a(26) =1333a(27) =4479398a(28) =1a(29) =2