Array A(i,j) read by antidiagonals: A(i,j) is the (2i-1)-th derivative of sin(sin(sin(...sin(x)))) nested j times evaluated at 0.
A212261
Array A(i,j) read by antidiagonals: A(i,j) is the (2i-1)-th derivative of sin(sin(sin(...sin(x)))) nested j times evaluated at 0.
Terms
- a(0) =1a(1) =1a(2) =-1a(3) =1a(4) =-2a(5) =1a(6) =1a(7) =-3a(8) =12a(9) =-1a(10) =1a(11) =-4a(12) =33a(13) =-128a(14) =1a(15) =1a(16) =-5a(17) =64a(18) =-731a(19) =1872a(20) =-1a(21) =1a(22) =-6a(23) =105a(24) =-2160a(25) =25857a(26) =-37600a(27) =1a(28) =1a(29) =-7
External references
- oeis: A212261