113626domain: NAppears in sequencesNumber of permutations of length n which avoid the patterns 1234, 3421, 4231.at n=15A116803Number of strings of numbers x(i=1..6) in 0..n with sum i^4*x(i) equal to 1296*n.at n=41A184352From the enumeration of involutions avoiding the pattern 4321.at n=16A217526