2702764

Appears in sequences

• Expansion of e.g.f. tan(x)*sin(x) (even powers only).at n=6A009744
• Number of fixed points in all reverse alternating (i.e., up-down) permutations of {1,2,...,n}.at n=11A162977
• Modified Euler numbers.at n=12A217714
• Binomial transform of -1, -1, 1, 2, -5, -16, ... (signed variant of A000111).at n=12A218529