920781
domain: N
Appears in sequences
- Number x = concat(MSD(x),b), where MSD = A000030 stands for Most Significant Digit, such that MSD(x)*b is equal to the reverse of x.at n=3A267939
- Consider any concatenation of the type n = concat(a,b). Sequence lists numbers whose reverses are the sum of the products of some of such couples a and b.at n=30A281555
- Numbers k which satisfy k = concat(a,b,...) and a*b*... = reverse(k), for some two or more a,b,...at n=8A363422