40671domain: NAppears in sequencesNumbers k such that sigma(k-3) + sigma(k+3) = sigma(2*k).at n=30A067129Number of permutations of length n which avoid the patterns 2314, 3421, 4123.at n=10A116812Number of 3-colored integer partitions such that no adjacent parts have the same color.at n=13A262444