a(n) is the n-th derivative of arcsinh(1/x) at x=1 times (-2)^n/sqrt(2) for n >= 1.
A300793
a(n) is the n-th derivative of arcsinh(1/x) at x=1 times (-2)^n/sqrt(2) for n >= 1.
Terms
- a(0) =1a(1) =3a(2) =13a(3) =75a(4) =561a(5) =5355a(6) =63405a(7) =894915a(8) =14511105a(9) =263544435a(10) =5284255725a(11) =116065424475
External references
- oeis: A300793