A037919 Trajectory of 4 under prime factor concatenation procedure.

4, 2, 2, 2, 11, 211

Offset: 0

Author

Jeff Burch

Keywords

• fini
• full
• nonn
• tabf
• base

Examples

			May be regarded as the rows of an irregular triangle:
4
2 2
2 11
211. - _N. J. A. Sloane_, Jun 15 2022
		

Links

• Patrick De Geest, Home Primes

Crossrefs

Cf. A037273.

Extensions

Edited by Charles R Greathouse IV, Apr 30 2010