18402
domain: N
Appears in sequences
- Number of points on surface of truncated cube: a(n) = 46*n^2 + 2 for n > 0.at n=20A005911
- Least number m such that the arithmetic mean of the distinct prime divisors of m is equal to 2^n.at n=9A070009
- Number of 3 X n 0-1 matrices avoiding simultaneously the right angled numbered polyomino patterns (ranpp) (00;1), (10;0) and (10;1).at n=11A099041
- Number of Fermat pseudoprimes to bases 2, 3, 5 and 7 less than 10^n.at n=12A114250
- Numbers n such that 6*p(n)-1 and 6*p(n)+1 are twin primes and 6*p(n+1)-1 and 6*p(n+1)+1 are also twin primes with p(n) = n-th prime.at n=24A126655
- Take apart the sides of each of the integer-sided triangles with perimeter n (at their vertices) and rearrange them orthogonally in 3-space so that their endpoints coincide at a single point. a(n) is the total surface area of all rectangular prisms enclosed in this way.at n=32A308236