Number of n-digit numbers whose base-10 representations can be written as the concatenations of 0 or more prime numbers (also expressed in base 10).

A246806

Number of n-digit numbers whose base-10 representations can be written as the concatenations of 0 or more prime numbers (also expressed in base 10).

Terms

    a(0) =1a(1) =4a(2) =33a(3) =285a(4) =2643a(5) =24920a(6) =239543a(7) =2327458a(8) =22801065a(9) =224608236a(10) =2222034266a(11) =22053438268

External references