98595
domain: N
Appears in sequences
- Numbers k such that 271*2^k-1 is prime.at n=14A050894
- a(n) = floor(C(n+8,8)/C(n+2,2)).at n=30A084631
- Numbers n such that Sum_{i=1..k} 1/p(i) + Sum_{i=1..j} 1/d(i) is an integer, where p are the prime factors of n, counted with multiplicity, and d its divisors.at n=8A224346
- Numbers m such that abs(K(m+1) - K(m)) = 1, where K(m) = A002034(m) is the Kempner function.at n=40A346211
- Numbers k such that A011776(k) = A011776(k+1).at n=20A373725