Number of 6-length words w over n-ary alphabet such that for every prefix z of w we have #(z,a_i) = 0 or #(z,a_i) >= #(z,a_j) for all j>i and #(z,a_i) counts the occurrences of the i-th letter in z.
A213285
Number of 6-length words w over n-ary alphabet such that for every prefix z of w we have #(z,a_i) = 0 or #(z,a_i) >= #(z,a_j) for all j>i and #(z,a_i) counts the occurrences of the i-th letter in z.
Terms
- a(0) =0a(1) =1a(2) =27a(3) =165a(4) =712a(5) =2535a(6) =8151a(7) =23527a(8) =60600a(9) =140517a(10) =297595a(11) =584001a(12) =1075152a(13) =1875835a(14) =3127047a(15) =5013555a(16) =7772176a(17) =11700777a(18) =17167995a(19) =24623677a(20) =34610040a(21) =47773551a(22) =64877527a(23) =86815455a(24) =114625032a(25) =149502925a(26) =192820251a(27) =246138777a(28) =311227840a(29) =390081987
External references
- oeis: A213285