Number of length 7+4 0..n arrays with some pair in every consecutive five terms totalling exactly n.
A246899
Number of length 7+4 0..n arrays with some pair in every consecutive five terms totalling exactly n.
Terms
- a(0) =1546a(1) =140893a(2) =2390116a(3) =25710385a(4) =139555230a(5) =647845357a(6) =2132283592a(7) =6483573889a(8) =16272395890a(9) =38904095581a(10) =82432596396a(11) =168949326193a(12) =318823302406a(13) =587124413485
External references
- oeis: A246899