55112
domain: N
Appears in sequences
- Shifts left under "DGJ" (bracelet, element, labeled) transform.at n=9A032226
- Shifts left under "EGJ" (unordered, element, labeled) transform.at n=9A032317
- Number of ternary rooted trees with n nodes and height exactly 5.at n=20A036420
- Numerators of continued fraction convergents to sqrt(877).at n=11A042694
- Numbers k such that sigma(k) + phi(k) is a brilliant number (A078972).at n=18A115916
- Members of A143610 for which both neighbors are squarefree.at n=20A166987
- Products n of a square of a prime and a cube of a prime such that n-1 and n+1 are semiprimes.at n=4A166988
- Nontotients (A005277) that are the product of two totients (A002202).at n=25A329872
- Number of compositions (ordered partitions) of n into distinct prime powers (1 excluded).at n=48A331847
- a(n) is the smallest dividend m of the Euclidean division m = d*n + r such that m/d = r/n.at n=34A335717
- Achilles numbers sandwiched between two semiprimes.at n=28A380937