Number of length 3 arrays x(i), i=1..3 with x(i) in i..i+n and no value appearing more than 2 times.
A250352
Number of length 3 arrays x(i), i=1..3 with x(i) in i..i+n and no value appearing more than 2 times.
Terms
- a(0) =8a(1) =26a(2) =62a(3) =122a(4) =212a(5) =338a(6) =506a(7) =722a(8) =992a(9) =1322a(10) =1718a(11) =2186a(12) =2732a(13) =3362a(14) =4082a(15) =4898a(16) =5816a(17) =6842a(18) =7982a(19) =9242a(20) =10628a(21) =12146a(22) =13802a(23) =15602a(24) =17552a(25) =19658a(26) =21926a(27) =24362a(28) =26972a(29) =29762
External references
- oeis: A250352