Triangle of coefficients in expansion of (1+x)*(1+3x)*(1+5x)*(1+7x)*...*(1+(2n-1)x).

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =3a(6) =1a(7) =9a(8) =23a(9) =15a(10) =1a(11) =16a(12) =86a(13) =176a(14) =105a(15) =1a(16) =25a(17) =230a(18) =950a(19) =1689a(20) =945a(21) =1a(22) =36a(23) =505a(24) =3480a(25) =12139a(26) =19524a(27) =10395a(28) =1a(29) =49