54938

Appears in sequences

• Euler transform of 4 3 2 1 1 1 1 1 1 1 ...at n=16A029860
• Coefficients arising in the enumeration of configurations of linear chains.at n=9A038748
• Number of rooted non-separable Eulerian planar maps with n edges.at n=12A069728
• Sum of the sizes of the Durfee squares of all partitions of n that do not contain 1 as a part, but with a(1) = 1.at n=44A208474
• a(n) is the determinant of the 2 X 2 matrix whose entries (when read by rows) are the n-th primes ending in 1, 3, 7, 9 respectively.at n=20A335592