1760289domain: NAppears in sequencesExpansion of e.g.f.: exp(tanh(x)-log(x+1))=1+1/2!*x^2-4/3!*x^3+9/4!*x^4-48/5!*x^5...at n=10A0134953^n times the expected value of the shortest run of 0's in a length n word on alphabet {0,1,2}.at n=13A209243