383220

Appears in sequences

• Number of subsets of {1,2,...,n} that contain the average of their elements.at n=22A065795
• G.f.: A(x) = exp( Sum_{n>=1} (1 + sigma(n)*x)^n * x^n/n ).at n=11A159308
• Number of 4Xn 0..1 arrays with no more than floor(4Xn/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order.at n=8A222544
• Numbers n such that n - 41, n - 1, n + 1, n + 41 are consecutive primes.at n=0A271323