34113
domain: N
Appears in sequences
- a(n) = (2*n+1)*(10*n+1).at n=41A033574
- Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1100-0100-1111 pattern in any orientation.at n=10A146657
- Numbers that are the product of 3 distinct primes a,b and c, such that a+b+c, a^2+b^2+c^2 and a^3+b^3+c^3 are prime numbers.at n=31A176911
- Numbers k such that 12321*2^k + 1 is prime.at n=35A180924
- Poincaré series for hyperbolic reflection group with Coxeter diagram o---o-(5)-o---o.at n=26A265044
- Numbers n such that sigma(n) is a Fibonacci number.at n=27A272412
- Number of non-isomorphic aperiodic multiset partitions of weight n.at n=9A303546
- a(n) = Sum_{k=0..4} 2^k * binomial(n,k).at n=16A389545
- Numbers k such that tau(k) and sigma(k) are both Fibonacci numbers.at n=14A390231