The Wiener index of the double-comb graph \/_\/_\/...\/_\/ with 3n (n>=1) nodes. The Wiener index of a connected graph is the sum of the distances between all unordered pairs of vertices in the graph.
A192025
The Wiener index of the double-comb graph \/_\/_\/...\/_\/ with 3n (n>=1) nodes. The Wiener index of a connected graph is the sum of the distances between all unordered pairs of vertices in the graph.
Terms
- a(0) =4a(1) =29a(2) =84a(3) =178a(4) =320a(5) =519a(6) =784a(7) =1124a(8) =1548a(9) =2065a(10) =2684a(11) =3414a(12) =4264a(13) =5243a(14) =6360a(15) =7624a(16) =9044a(17) =10629a(18) =12388a(19) =14330a(20) =16464a(21) =18799a(22) =21344a(23) =24108a(24) =27100a(25) =30329a(26) =33804a(27) =37534a(28) =41528a(29) =45795
External references
- oeis: A192025