22029

Appears in sequences

• Length of one version of Kolakoski sequence {A000002(i)} at n-th growth stage.at n=25A001083
• 30*a(n) is the gap between sexy prime triples in the n-th sexy prime triple triple whose initial term is 17.at n=16A090891
• Triangle read by rows: T(n,k) is the number of Motzkin paths of length n and having k UHD's, where U=(1,1),H=(1,0),D=(1,-1) (0<=k<=floor(n/3)).at n=35A114583
• Number of Motzkin paths of length n having no UHD's (U=(1,1), H=(1,0), D=(1,-1)).at n=13A114584
• Triangle read by rows: T(n,k) is the number of permutations of [n] having k cycles with 2 alternating runs (it is assumed that the smallest element of the cycle is in the first position), 0<=k<=floor(n/3).at n=20A187244
• Sum of parts that are visible in one of the three views of the shell model of partitions version "tree" with n shells.at n=26A194804
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 389", based on the 5-celled von Neumann neighborhood.at n=32A271596
• Number of new terms added at n-th generation of A306211.at n=23A323475