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 A213869 Number of words w where each letter of the n-ary alphabet occurs 9 times and 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. 1
 1, 1, 6292, 846167608, 673174876488400, 1785201362960729511070, 11481253272835564584899247346, 146812609193179942830629976945746464, 3264601141014490309682718148875987514642243, 114752550881830601773639529476205016572641397025904 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Table of n, a(n) for n=0..9. EXAMPLE a(0) = 1: the empty word. a(1) = 1: aaaaaaaaa. a(2) = 6292: aaaaaaaaabbbbbbbbb, aaaaaaaababbbbbbbb, ..., baababababababaabb, baabababababababab. CROSSREFS Row n=9 of A213275. Sequence in context: A071091 A209826 A107582 * A350416 A189344 A054560 Adjacent sequences: A213866 A213867 A213868 * A213870 A213871 A213872 KEYWORD nonn AUTHOR Alois P. Heinz, Jun 23 2012 STATUS approved

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Last modified May 20 21:47 EDT 2024. Contains 372720 sequences. (Running on oeis4.)