53636domain: NAppears in sequencesa(n) = n*(n+1)*(n^2 - 3*n + 6)/4.at n=22A062026Number of initially rising meander words, where each letter of the cyclic 7-ary alphabet occurs n times.at n=4A209353Number of length 3+1 0..2*n arrays with the sum of the absolute values of adjacent differences equal to 3*n.at n=23A249983