Number of ordered triples (a,b,c) of positive integers less than n with the property that n divides a*b*c.

A352078

Number of ordered triples (a,b,c) of positive integers less than n with the property that n divides a*b*c.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =7a(4) =0a(5) =42a(6) =0a(7) =87a(8) =80a(9) =156a(10) =0a(11) =439a(12) =0a(13) =342a(14) =528a(15) =687a(16) =0a(17) =1160a(18) =0a(19) =1543a(20) =1152a(21) =930a(22) =0a(23) =3207a(24) =1024a(25) =1332a(26) =2024a(27) =3319a(28) =0a(29) =5502

External references