47793

Appears in sequences

• Number of necklace compositions of n where every pair of adjacent parts (including the last with the first) is relatively prime.at n=21A328597
• a(0) = a(1) = a(2) = 1, for n > 2, a(n) = a(n-1) + a(n-k) + k with k = 3.at n=30A362256