A116026 phi(n) plus n gives a semiprime (A001358).

4, 5, 9, 10, 11, 13, 17, 21, 26, 29, 30, 43, 45, 47, 49, 55, 57, 58, 61, 66, 67, 70, 71, 73, 75, 82, 87, 89, 99, 101, 102, 103, 106, 107, 109, 111, 115, 119, 123, 127, 129, 130, 146, 151, 153, 154, 175, 181, 182, 183, 185, 190, 191, 195, 197, 202, 203, 205, 207

Offset: 1

Author

Giovanni Resta, Feb 13 2006

Keywords

• nonn

Examples

			phi(101)+101=201=3*67.
		

Crossrefs

Cf. A001358, A116015.