100048

Appears in sequences

• [ (4th elementary symmetric function of P(n))/(2nd elementary symmetric function of P(n)) ], where P(n) = {1, p(1), p(2), ..., p(n-1)}, where p(0) = 1.at n=24A024535
• Number of n X 5 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 0 1 vertically.at n=12A207450
• Number of integer partitions of n whose first differences (assuming the last part is zero) are not unimodal.at n=46A332284