A triangular sequence from umbral calculus expansion of _Simon Plouffe_'s rational polynomial for A002890: p(x,t) = exp(x*t)*(1 - 6*t + 9*t^2 - 4*t^3 + t^4)/(4*t - 1)/(2*t - 1).
A137514
A triangular sequence from umbral calculus expansion of _Simon Plouffe_'s rational polynomial for A002890: p(x,t) = exp(x*t)*(1 - 6*t + 9*t^2 - 4*t^3 + t^4)/(4*t - 1)/(2*t - 1).
Terms
- a(0) =1a(1) =0a(2) =1a(3) =2a(4) =0a(5) =1a(6) =12a(7) =6a(8) =0a(9) =1a(10) =120a(11) =48a(12) =12a(13) =0a(14) =1a(15) =1680a(16) =600a(17) =120a(18) =20a(19) =0a(20) =1a(21) =31680a(22) =10080a(23) =1800a(24) =240a(25) =30a(26) =0a(27) =1a(28) =766080a(29) =221760
External references
- oeis: A137514