44799

Appears in sequences

• a(n) = index of the triangular number A076971(n).at n=29A076972
• a(n) = 28*n^2 - 1.at n=39A158554
• Number of representations of n as a sum of products of distinct pairs of positive integers, considered to be equivalent when terms or factors are reordered.at n=48A211856
• Numbers k such that the sum of decimal digits of k is the sum of primes dividing k+1 (with repetition).at n=30A339805
• a(0) = 1; thereafter a(n) = 2*a(n-1) + 1, with digits rearranged into nondecreasing order.at n=21A346296