36859
domain: N
Appears in sequences
- Numbers k such that 6*phi(k) = 5*sigma(k).at n=3A065823
- Number of primitive Dyck factors in all skew Dyck paths of semilength n.at n=9A129156
- S_13 sequence in partition of integers > 1 described in A240521.at n=13A241025
- Maximal non-semiprime number which is a "preprime" of the n-th kind (defined in comment in A247395).at n=33A247834
- a(n) = 36*2^n - 5 (n>=1).at n=9A304383
- Numbers k such that w(k-2), w(k-1), and w(k) are all odd, where w is A336957.at n=13A338070
- Numbers m such that sigma(m) = tau(m)! where sigma(k) = A000203(k) and tau(k) = A000005(k).at n=35A351866