1062625domain: NAppears in sequencesNumbers k such that k | 9^k + 1.at n=24A015957Number of ordered factorizations with 3 levels of parentheses indexed by prime signatures: A050358(A025487(n)).at n=33A050359Expansion of e.g.f. log(1 + arctanh(x))*exp(-x).at n=9A297213