Expansion of e.g.f. sech(arcsin(x)*log(x+1)).

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =-12a(5) =60a(6) =-450a(7) =2940a(8) =-16688a(9) =58464a(10) =506520a(11) =-18245040a(12) =332343528a(13) =-5206192992a(14) =71271712512a(15) =-855046876320