69741domain: NAppears in sequencesa(n) = (n+1)*(2*n+1)*(4*n+1).at n=20A079588Structured icosidodecahedral numbers.at n=20A100147Number of reduced words of length n in Coxeter group on 42 generators S_i with relations (S_i)^2 = (S_i S_j)^3 = I.at n=3A162879Odd octagonal pyramidal numbers.at n=20A218326