42765domain: NAppears in sequencesConvolution of (F(2), F(3), F(4), ...) and A001950.at n=16A023654Number of n-length words w over a 5-ary alphabet such that w is empty or a prefix z concatenated with letter a_i and i=1 or 0 < #(z,a_{i-1}) >= #(z,a_i), where #(z,a_i) counts the occurrences of the i-th letter in z.at n=10A240611