173565

Appears in sequences

• Number of ordered 5-tuples of integers from [ 2,n ] with no common factors among triples.at n=34A015657
• a(n) = n*(n+1)*(n+2)*(n^2+7*n+32)/120.at n=26A051747
• a(n) = 1*2*3*4 + 5*6*7*8 + 9*10*11*12 + 13*14*15*16 + 17*18*19*20 + ... + (up to n).at n=20A319205