E.g.f. sinh(log(1+x))/exp(x). Unsigned sequence gives degrees of (finite by nilpotent) representations of Braid groups.

A009578

E.g.f. sinh(log(1+x))/exp(x). Unsigned sequence gives degrees of (finite by nilpotent) representations of Braid groups.

Terms

    a(0) =0a(1) =1a(2) =-3a(3) =9a(4) =-34a(5) =165a(6) =-981a(7) =6853a(8) =-54804a(9) =493209a(10) =-4932055a(11) =54252561a(12) =-651030678a(13) =8463398749a(14) =-118487582409

External references