230299

Appears in sequences

• a(n) = a(n-1) * (11*a(n-1) - 16*a(n-2)) / (a(n-1) + 10*a(n-2)) with a(1) = 1, a(2) = 2.at n=9A247518
• Number of subsets of {1...n} containing all prime indices of the elements.at n=24A324736