145630
domain: N
Appears in sequences
- a(n) = A026568(n,n-1), also a(n) = number of integer strings s(0),...,s(n) counted by A026568 such that s(n)=1.at n=14A026570
- a(n) = sum of all divisors of all numbers k such that n^2 <= k < (n+1)^2.at n=34A168012
- a(n) is the number of integer sextuples (a,b,c,d,e,f) satisfying a system of linear inequalities and congruences specified in the comments.at n=6A384295