193410
domain: N
Appears in sequences
- Numbers k such that both the sum of the semiprime divisors of k and the sum of the prime divisors of k are squares.at n=24A227478
- 29-gonal pyramidal numbers: a(n) = n*(n+1)*(9*n-8)/2.at n=35A256649
- Number of length-4 0..n arrays with no repeated value greater than or equal to the previous repeated value.at n=19A269410