128040
domain: N
Appears in sequences
- (Sum of digits of n)^5 - (sum of digits^5 of n).at n=38A069965
- Numbers whose square can be expressed as a+b*c, with a,b,c in geometric sequence.at n=19A130733
- a(n) = 8000*n + 40.at n=15A157663
- Number of distinct solutions of sum{i=1..4}(x(2i-1)*x(2i)) = 0 (mod n), with x() only in 1..n-1.at n=12A180775
- Numbers k such that sigma(k) = 3*sigma(k+1).at n=6A217791
- Number of compositions of n whose negation is not unimodal.at n=18A332669
- Numbers k such that A011772(k) > A344878(k) and A011772(k) is a divisor of A344875(k).at n=38A344595