Coefficients T(n,k) of x^(3*n)*r^(3*k)/(3*n)! in power series C(x,r) = 1 + Integral S(x,r)^2 * D(x,r)^2 dx such that C(x,r)^3 - S(x,r)^3 = 1 and D(x,r)^3 - r^3*S(x,r)^3 = 1, as a triangle read by rows.
A357541
Coefficients T(n,k) of x^(3*n)*r^(3*k)/(3*n)! in power series C(x,r) = 1 + Integral S(x,r)^2 * D(x,r)^2 dx such that C(x,r)^3 - S(x,r)^3 = 1 and D(x,r)^3 - r^3*S(x,r)^3 = 1, as a triangle read by rows.
Terms
- a(0) =1a(1) =2a(2) =0a(3) =40a(4) =120a(5) =0a(6) =3680a(7) =37440a(8) =21600a(9) =0a(10) =880000a(11) =20592000a(12) =38966400a(13) =8553600a(14) =0a(15) =435776000a(16) =19269888000a(17) =79491456000a(18) =57708288000a(19) =6329664000a(20) =0a(21) =386949376000a(27) =0a(35) =0
External references
- oeis: A357541