Triangle of coefficients T(n, k) (n > 0, k < n) in expansion of sin(u*x) * sin(v*x) / (cos(u*x) + cos(v*x)), read by rows.

A224873

Triangle of coefficients T(n, k) (n > 0, k < n) in expansion of sin(u*x) * sin(v*x) / (cos(u*x) + cos(v*x)), read by rows.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =3a(4) =25a(5) =3a(6) =17a(7) =329a(8) =329a(9) =17a(10) =155a(11) =5325a(12) =14301a(13) =5325a(14) =155a(15) =2073a(16) =110605a(17) =563013a(18) =563013a(19) =110605a(20) =2073a(21) =38227a(22) =2918825a(23) =23904881a(24) =45956625a(25) =23904881a(26) =2918825a(27) =38227a(28) =929569a(29) =96075665

External references