42107
domain: N
Appears in sequences
- s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (Fibonacci numbers), t = A000201 (lower Wythoff sequence).at n=28A024464
- Number of (w,x,y,z) with all terms in {1,...,n} and w^3<=x^3+y^3+z^3.at n=15A212098
- Products p*q*r of three distinct primes such that (p*q) mod r, (p*r) mod q and (q*r) mod p are all prime.at n=43A338704