1827072

Appears in sequences

• tan(arcsin(x)*arcsin(x))=2/2!*x^2+8/4!*x^4+368/6!*x^6+18048/8!*x^8...at n=5A012342
• Number of nX5 binary arrays with rows and columns lexicographically nondecreasing and row and column sums nondecreasing.at n=9A266359