343059613651domain: NAppears in sequencesA transformation of the Catalan sequence.at n=45A129110a(n) = C(n) + 1 - 0^n where C(n) = A000108(n).at n=23A141351Inverse Moebius transform of Catalan numbers.at n=22A237670Number of excursions of length n with Motzkin-steps avoiding the consecutive steps UH, HU, HD and DH.at n=46A329696