Triangle of numbers associated with Genocchi numbers.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =3a(6) =5a(7) =3a(8) =3a(9) =17a(10) =17a(11) =31a(12) =25a(13) =31a(14) =17a(15) =17a(16) =155a(17) =155a(18) =293a(19) =259a(20) =349a(21) =259a(22) =293a(23) =155a(24) =155a(25) =2073a(26) =2073a(27) =3991a(28) =3681a(29) =5151