217192

Appears in sequences

• [ (4th elementary symmetric function of S(n))/(first elementary symmetric function of S(n)) ], where S(n) = {first n+3 positive integers congruent to 2 mod 3}.at n=8A024400
• Product of Fibonacci and (shifted) triangular numbers.at n=17A086926
• a(n) is the number of odd-balanced unimodal sequences of weight 2n+2.at n=31A335768