A006510 Duplicate of A006055.

2, 3, 5, 7, 23, 67, 89, 4567, 78901, 678901, 23456789, 45678901, 9012345678901

Offset: 1

Author

N. J. A. Sloane, Jun 13 2012

Keywords

• dead

References

• N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).