Triangle of Gandhi polynomial coefficients.

Terms

a(0) =1a(1) =1a(2) =3a(3) =3a(4) =7a(5) =30a(6) =51a(7) =42a(8) =15a(9) =145a(10) =753a(11) =1656a(12) =1995a(13) =1410a(14) =567a(15) =105a(16) =6631a(17) =39048a(18) =100704a(19) =149394a(20) =140475a(21) =86562a(22) =34566a(23) =8316a(24) =945a(25) =566641a(26) =3656439a(27) =10546413a(28) =17972598a(29) =20133921