Irregular triangle T(n,k) read by rows of the reduced coefficients of Pi^(2*k) in the expansion of Sum_{k>=1} (1 / (4*k^2-1)^n).
A382782
Irregular triangle T(n,k) read by rows of the reduced coefficients of Pi^(2*k) in the expansion of Sum_{k>=1} (1 / (4*k^2-1)^n).
Terms
- a(0) =1a(1) =-8a(2) =1a(3) =32a(4) =-3a(5) =-384a(6) =30a(7) =1a(8) =1536a(9) =-105a(10) =-5a(11) =-30720a(12) =1890a(13) =105a(14) =2a(15) =61440a(16) =-3465a(17) =-210a(18) =-7a(19) =-10321920a(20) =540540a(21) =34650a(22) =1512a(23) =17a(24) =4587520a(25) =-225225a(26) =-15015a(27) =-770a(28) =-17a(29) =-1486356480
External references
- oeis: A382782