38238
domain: N
Appears in sequences
- Number of polyominoes with n cells that tile the plane isohedrally.at n=12A075205
- Number of n X n 0..1 arrays with exactly floor(n X n/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..1 order.at n=5A222321
- Number of nX6 0..1 arrays with exactly floor(nX6/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..1 order.at n=5A222326
- T(n,k)=Number of nXk 0..1 arrays with exactly floor(nXk/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..1 order.at n=60A222328
- Terms of A007504 divisible by 3.at n=39A249679
- Numbers in A007504 such that omega(a(n)) = Omega(a(n)) = 3.at n=19A264885
- Average of a twin prime pair which is the sum of the first k primes, for some k.at n=2A366205
- a(n) = Sum_{k=3..n} binomial(k,3) * floor(n/k).at n=30A366971