1890944

Appears in sequences

• Indices of highly composite triangular numbers.at n=38A101755
• a(n) is the smallest positive integer such that d(a(n))*d(a(n)+1) > d(a(n-1))*d(a(n-1)+1), where d(m) is the number of divisors of m and n > 1; a(1) = 1.at n=40A123000
• Numbers m such that min(d(m), d(m+1)) > min(d(k), d(k+1)) for all k < m, where d(m) is the number of divisors of m (A000005).at n=17A333053
• a(n) is the least number k such that A048105(k) = A048105(k+1) = 2*n, and 0 if it does not exist.at n=24A344315
• Numbers k such that k and k+1 are both nonexponential abundant numbers.at n=21A348606
• Numbers k such that k | A020696(k) and (k+1) | A020696(k+1).at n=14A355332