Number of distinct values taken by 5th derivative of x^x^...^x (with n x's and parentheses inserted in all possible ways) at x=1.
A199296
Number of distinct values taken by 5th derivative of x^x^...^x (with n x's and parentheses inserted in all possible ways) at x=1.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =4a(4) =9a(5) =20a(6) =45a(7) =92a(8) =182a(9) =342a(10) =601a(11) =982a(12) =1499a(13) =2169a(14) =2970a(15) =3994a(16) =5297a(17) =6834a(18) =8635a(19) =10714a(20) =13121a(21) =16104a(22) =19674a(23) =23868a(24) =28453a(25) =33637a(26) =39630a(27) =46730
External references
- oeis: A199296