340001

Appears in sequences

• Numbers k that are multiples of the reversal of k-1.at n=14A160945
• Cardinality of the set f^n({s}), where f is a variant of the Collatz function that replaces any element x in the argument set with both x/2 and 3*x+1, and s is an arbitrary irrational number.at n=19A208127
• A239461(n) / n^2.at n=33A239464