142885domain: NAppears in sequencesCentral coefficients of number triangle A113582.at n=27A154323Number of permutations of length n which avoid the patterns 321 and 1324.at n=28A179257Numbers that are multiple-digit narcissistic numbers in exactly four bases.at n=11A256363a(n) = 2*n^3 + 3*n^2.at n=41A275709