202125

Appears in sequences

• a(n) = n*(2*n+5)*(2*n+7).at n=35A035329
• Numbers with exactly 4 distinct odd prime divisors {3,5,7,11}.at n=26A147577
• Prime factorization representation of Stern polynomials: a(0) = 1, a(1) = 2, a(2n) = A003961(a(n)), a(2n+1) = a(n)*a(n+1).at n=46A260443
• Successive integers produced by Conway's PRIMEGAME, starting with 12 rather than 2.at n=7A273099
• a(n) = gcd(A260443(n), A260443(n+1)).at n=54A277198
• Even bisection of A260443 (the odd terms): a(n) = A260443(2*n).at n=23A277323
• Odd bisection of A283983; square root of the largest square dividing A277324.at n=51A283484
• Irregular triangle read by rows: T(r,c) is the product of the number of standard Young tableaux (A117506) and the number of semistandard Young tableaux (A262030) for partitions of r.at n=56A380611