19758

Appears in sequences

• Powers of fifth root of 22 rounded down.at n=16A018177
• Powers of fifth root of 22 rounded to nearest integer.at n=16A018178
• a(n) = (1/2)*A026907(2*n, n).at n=5A026909
• Numbers k that divide prime(k^2) - 1.at n=19A067852
• a(n) = Sum_{k=1..n} (k+2)!/k! = Sum_{k=1..n} (k+2)*(k+1).at n=37A180118
• Indices of squares of primes in A098550.at n=34A251240
• Numbers k such that (424*10^k - 1)/9 is prime.at n=17A295626
• Number of 4-element subsets of [n] having a prime element sum.at n=36A320679