40373

Appears in sequences

• Number of partitions of n into parts not of the form 21k, 21k+5 or 21k-5. Also number of partitions with at most 4 parts of size 1 and differences between parts at distance 9 are greater than 1.at n=43A035983
• Number of noncaterpillar trees on n nodes (A000055-A005418).at n=16A052471
• Number of quanimous subsets of {1..n} containing n, meaning there is more than one set partition with equal block-sums.at n=16A371797