Number of 8-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.
A213287
Number of 8-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) =91a(3) =869a(4) =4895a(5) =21562a(6) =83728a(7) =296268a(8) =977026a(9) =2990967a(10) =8418649a(11) =21740455a(12) =51758345a(13) =114517208a(14) =237528214a(15) =465636886a(16) =868918932a(17) =1553027197a(18) =2672453415a(19) =4447208761a(20) =7183467523a(21) =11298758534a(22) =17352329324a(23) =26081348272a(24) =38443650358a(25) =55667772435a(26) =79311064261
External references
- oeis: A213287