42530

Appears in sequences

• Engel expansion of sqrt(Pi) = 1.77245... .at n=9A059187
• Cardinality of the Weyl alternation set corresponding to the zero-weight in the adjoint representation of the Lie algebra sp(2n).at n=15A232165
• Number of (n+2) X (4+2) 0..3 arrays with every 3 X 3 subblock row and column sum not 2 3 6 or 7 and every diagonal and antidiagonal sum 2 3 6 or 7.at n=11A251890