39589

Appears in sequences

• Number of hill-free Dyck paths of semilength n+3 and having no peaks at even levels (a hill in a Dyck path is a peak at level 1).at n=12A114589
• Apply partial sum operator twice to sequence of squares of the first n primes.at n=14A157492
• Integers n such that for all i > n the largest prime factor of i(i+1)(i+2)(i+3)(i+4) exceeds the largest prime factor of n(n+1)(n+2)(n+3)(n+4).at n=13A193946
• a(n) = 2^(n+1)*cos(n*arctan(sqrt(15))).at n=15A272931
• Positive numbers k such that -k, -(k + 1), -(k + 2), and -(k + 3) are 4 consecutive negative negabinary-Niven numbers (A331728).at n=17A331825