Denominator of the rational number alpha_n involved in the calculation of the second moment of the n-th term of Ulam's "history-dependent random sequence".
A329498
Denominator of the rational number alpha_n involved in the calculation of the second moment of the n-th term of Ulam's "history-dependent random sequence".
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =24a(5) =120a(6) =720a(7) =1680a(8) =40320a(9) =362880a(10) =725760a(11) =7983360a(12) =2128896a(13) =113218560a(14) =387459072a(15) =261534873600a(16) =836911595520
External references
- oeis: A329498