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A106360 Number of compositions of n with exactly 4 adjacent equal parts. 1

%I #5 May 01 2014 04:57:55

%S 1,0,2,9,14,33,92,189,411,926,2016,4219,8935,18805,38808,79928,163963,

%T 332676,672036,1352412,2705019,5385960,10684650,21105565,41533076,

%U 81467400,159263257,310372453,603149241,1168863180,2259230907

%N Number of compositions of n with exactly 4 adjacent equal parts.

%H A. Knopfmacher and H. Prodinger, <a href="http://www.sciencedirect.com/science/article/pii/S0195669898902165">On Carlitz compositions</a>, European Journal of Combinatorics, Vol. 19, 1998, pp. 579-589.

%Y Column 4 of A106356. Cf. A003242.

%K nonn

%O 5,3

%A _Christian G. Bower_, Apr 29 2005

%E Replaced broken link, _Vaclav Kotesovec_, May 01 2014

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Last modified May 16 11:17 EDT 2024. Contains 372552 sequences. (Running on oeis4.)