Irregular triangle read by rows: T(n,k) is the number of chordless cycles of length k in the n-diagonal intersection graph, 4 <= k <= kmax.
A371340
Irregular triangle read by rows: T(n,k) is the number of chordless cycles of length k in the n-diagonal intersection graph, 4 <= k <= kmax.
Terms
- a(0) =1a(1) =0a(2) =2a(3) =15a(4) =6a(5) =6a(6) =25a(7) =24a(8) =30a(9) =24a(10) =15a(11) =18a(12) =18a(13) =7a(14) =14a(15) =0a(16) =30a(17) =35a(18) =49a(19) =77a(20) =91a(21) =329a(22) =483a(23) =672a(24) =1498a(25) =2905a(26) =5117a(27) =7525a(28) =8806a(29) =9639
External references
- oeis: A371340