107816

Appears in sequences

• a(n) = a(n-1) + a(n-2) + 2 a(ceiling(n/2)), where a(0) = 1, a(1) = 2, a(2) = 3.at n=19A298351
• Number of ways to choose 4 disjoint subsets of {1..n} with the same sum and with respectively 1, 2, 3 and 4 distinct elements of {1..n}.at n=31A363517