A160133 Values k such that A001065(x)= k has more than one solution.

1, 6, 8, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 25, 27, 29, 31, 32, 33, 35, 37, 40, 41, 42, 43, 44, 45, 46, 47, 49, 50, 51, 53, 54, 55, 57, 59, 61, 62, 63, 64, 65, 67, 69, 71, 73, 74, 75, 76, 77, 79, 81, 83, 85, 87, 89, 90, 91, 92, 93, 95, 97, 99, 100, 101, 103, 104, 105

Offset: 1

Author

Jaroslav Krizek, May 02 2009

Keywords

• nonn

Comments

Numbers k with A048138(k) >= 2. Numbers k which occur in A001065 more than once. Number 1 and numbers k = A160095(n) with A160095(n+1) - A160095(n) = 0.

Examples

			a(3)=8 as the multiplicity of the value 8 is 2: 8 = A001065(10) = A001065(49).
		

Crossrefs

Cf. A048138, A001065, A160095.

Programs

PARI

{z=105; v=vector(z); for(n=1, z^2, a=sigma(n)-n; if(01, print1(j, ",")))} \\ Klaus Brockhaus, May 26 2009

Extensions

More terms from Klaus Brockhaus, May 26 2009