104342
domain: N
Appears in sequences
- Numbers k such that sigma(k) = sigma(k+13).at n=18A015883
- Positive numbers k such that k and 4*k are anagrams in base 7 (written in base 7).at n=31A023070
- Number of (0,1)-strings of length n that avoid the substrings of substrings 11101011 and 101111.at n=17A062259
- Numbers with palindromic order 5.at n=13A261912
- Expansion of e.g.f. exp(-x) / (2 - exp(3*x)).at n=5A367979