195378
domain: N
Appears in sequences
- Least k such that the first k terms of the Kolakoski sequence (A000002) contain n more 1's than 2's.at n=15A022327
- Numbers that are the sum of four fourth powers in three or more ways.at n=20A344241
- Numbers that are the sum of four fourth powers in exactly three ways.at n=20A344242
- a(n) = (1/(4*n)) * Sum_{d|n} 5^(n/d-1) * phi(5*d).at n=9A364211