792855
domain: N
Appears in sequences
- Numbers k such that k and k+1 have the same number and sum of divisors.at n=18A054004
- Numbers k such that A065608(k) = A065608(k+1).at n=25A065062
- Numbers k such that t(k) = t(k+1) where t(k) = tau(k) + sigma(k) = A007503(k) is the number of subgroups of the dihedral group of order 2k.at n=18A322256
- Numbers k such that both k and k+1 are infinitary abundant numbers (A129656).at n=12A327635