Number of arrays of n 0..12 integers with new values introduced in order 0..12 but otherwise unconstrained.
A203643
Number of arrays of n 0..12 integers with new values introduced in order 0..12 but otherwise unconstrained.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =15a(4) =52a(5) =203a(6) =877a(7) =4140a(8) =21147a(9) =115975a(10) =678570a(11) =4213597a(12) =27644437a(13) =190899321a(14) =1382958439a(15) =10480136006a(16) =82864611947a(17) =682068020031
External references
- oeis: A203643