103671domain: NAppears in sequencesNumber of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 3,2,1,1,1,0,0 for x=0,1,2,3,4,5,6.at n=5A197925Position of 7^n among 7-smooth numbers (A002473).at n=24A232093