41867

Appears in sequences

• Number of compositions (ordered partitions) of n into distinct parts.at n=30A032020
• Number of partitions satisfying cn(0,5) < cn(1,5) + cn(4,5) + cn(2,5) and cn(0,5) < cn(1,5) + cn(4,5) + cn(3,5).at n=40A039846
• Triangle T(n,k) of number of digraphs with a quasi-source on n unlabeled nodes and with k arcs, k = 0..n*(n-1).at n=55A057279
• Number of strip poly-IH68-tiles (holes allowed) with n cells.at n=13A182646
• a(n) = number of n-lettered words in the alphabet {1, 2, 3} with as many occurrences of the substring (consecutive subword) [1, 2, 1] as of [2, 1, 2].at n=10A211298
• Number of partitions of n that contain exactly two isolated singletons.at n=14A303588
• Number of compositions (ordered partitions) of the n-th primorial into distinct parts.at n=3A343119
• a(n) is the number of multisets of n decimal digits where the sum of the digits equals the product of the prime digits.at n=30A384445