a(n) = (1/n) times the n-th derivative of the ninth tetration of x (power tower of order 9) x^^9 at x=1.

A295109

a(n) = (1/n) times the n-th derivative of the ninth tetration of x (power tower of order 9) x^^9 at x=1.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =14a(4) =96a(5) =849a(6) =9362a(7) =123101a(8) =1888016a(9) =32703888a(10) =631924752a(11) =13408344586a(12) =310042428528

External references