251250
domain: N
Appears in sequences
- Let x(0)x(1)x(2)... x(q) denote the decimal expansion of n. Sequence lists the numbers n such that the suffix of decimal expansion x(2)... x(q) is the p-th divisor of n where p is the prefix of decimal expansion x(0)x(1).at n=28A234315
- Least k formed by the concatenation of two numbers n and d such that d is the n-th divisor of k, or 0 if no such k exists.at n=24A257491
- Numbers m such that the concatenation of k and the k-th divisor of m is equal to m for some k.at n=24A258738
- Triangle read by rows: T(n,k) is the total number of movable letters in all members of the k-partitions of [n], with 1 <= k <= n.at n=48A367468