53109

Appears in sequences

• a(n) = binomial(n+2,2) + binomial(n+3,3) + binomial(n+4,4) + binomial(n+5,5).at n=19A027659
• Duplicate of A147681.at n=8A145874
• Late-growing permutations: number of permutations of 1..n with every partial sum <= the same partial sum averaged over all permutations.at n=9A147681
• a(n) is the number of partitions of n with Durfee square of size <= 5.at n=42A330643
• Table read by antidiagonals: Place k points in general position on each side of a regular n-gon and join every pair of the n*(k+1) boundary points by a chord; T(n,k) (n >= 3, k >= 0) gives number of regions in the resulting planar graph.at n=39A366253
• Sum over all multiplicative partitions mu of n whose sum is also n (with factors >= 1), of the encoding as Product_{j in mu} prime(j).at n=15A377853