a(n) is the number of ordered 6-tuples (a_1,a_2,a_3,a_4,a_5,a_6) having all terms in {1,...,n} such that there exists a tetrahedron ABCD with those edge-lengths, taken in a particular order (see comments).
A349295
a(n) is the number of ordered 6-tuples (a_1,a_2,a_3,a_4,a_5,a_6) having all terms in {1,...,n} such that there exists a tetrahedron ABCD with those edge-lengths, taken in a particular order (see comments).
Terms
- a(0) =0a(1) =1a(2) =15a(3) =124a(4) =603a(5) =2173a(6) =6204a(7) =15201a(8) =33149a(9) =66002a(10) =122410a(11) =214186a(12) =357189a(13) =572385a(14) =886117a(15) =1330930a(16) =1947746a(17) =2787431a(18) =3907866a(19) =5380602a(20) =7288597a(21) =9729060a(22) =12815704a(23) =16677303a(24) =21461500a(25) =27340308a(26) =34501149a(27) =43160975a(28) =53560487a(29) =65967718
External references
- oeis: A349295