189209

Appears in sequences

• Number of zeros in n-th even perfect number written in base 16.at n=31A161496
• Numbers k such that exactly three d in the range d <= k/2 exist which divide binomial(k-d-1,d-1) and which are not coprime to k.at n=29A178099
• Odd composites k, not powers of primes, such that for all their nontrivial unitary divisors d it holds that A347381(d) > A347381(k).at n=8A347383
• Expansion of (theta_3(x) - 1)^3 / (4 * (3 - theta_3(x))).at n=34A347806
• Expansion of (theta_3(x) - 1)^4 / (8 * (3 - theta_3(x))).at n=33A347807
• After the initial 1, numbers k such that A347381 obtains its minimum value at k, of all the divisors d of k larger than one, where A347381 is the distance from n to the nearest common ancestor of n and sigma(n) in the Doudna-tree (A005940).at n=42A374218