183884

Appears in sequences

• a(n) is the number of subsequences {s(k)} of {1,2,3,...n} such that s(k+1)-s(k) is 1 or 3.at n=27A050228
• Number of 4 X n binary arrays with rows and columns lexicographically nondecreasing and column sums nonincreasing.at n=27A266471
• Sum of the largest parts of the partitions of n into 10 parts.at n=48A326598