Rectangular array read by rows: T(n,k) is the number of words of length n on alphabet {0,1,2} that have exactly k records, n>=0, 0<=k<=3.
A285852
Rectangular array read by rows: T(n,k) is the number of words of length n on alphabet {0,1,2} that have exactly k records, n>=0, 0<=k<=3.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =3a(6) =0a(7) =0a(8) =0a(9) =6a(10) =3a(11) =0a(12) =0a(13) =14a(14) =12a(15) =1a(16) =0a(17) =36a(18) =39a(19) =6a(20) =0a(21) =98a(22) =120a(23) =25a(24) =0a(25) =276a(26) =363a(27) =90a(28) =0a(29) =794
External references
- oeis: A285852