3562650domain: NAppears in sequencesNumber of labeled pure 2-complexes on n nodes (0-simplexes) with 5 2-simplexes and 8 1-simplexes.at n=24A054559a(n) = 6*binomial(n+1, 6).at n=24A253946Column 2 of triangle in A331431.at n=24A331434