17024247304domain: NAppears in sequencesMaximum value in the distribution by first value of Prufer code of noncrossing spanning trees on a circle of n+2 points; perhaps the number whose Prufer code starts with 2.at n=14A056096Sum of integers generated by n-1 substitutions, starting with 1, k -> k+1, k-1, .., 1.at n=28A093951