24061

Properties

Appears in sequences

• a(n) = (1/C(0,0) + 1/C(2,1) + ... + 1/C(2n,n))*L, where L = LCM{C(0,0), C(2,1),..., C(2n,n)}.at n=6A025541
• Primes that are palindromic in base 12.at n=35A029979
• Numbers whose base-4 representation contains exactly four 1's and four 3's.at n=8A045133
• E.g.f.: 1-1/B(x) where B(x) is e.g.f. for A003024.at n=5A082403
• First primes of arithmetic progressions of 5 primes each with the common difference 30.at n=36A227281
• Primes of the form n^2 + pi(n).at n=26A228865
• Primes p such that f(f(p)) is prime, where f(x) = x^4 + x^3 + x^2 + x + 1 = A053699(x).at n=27A237445
• Smallest prime a(n) = x^2 + y^2 such that c^2 + d^2 = A002313(n) and c*x + d*y = 1, where c,d,x,y are integers.at n=59A244290
• Least prime p such that pi(p*n)^2 + 1 = prime(q*n) for some prime q.at n=19A260219
• Number of integer partitions of n whose LCM is greater than n.at n=39A327779
• Prime numbersat n=2676