A236562 Numbers n such that A049820(x) = n has a solution.

0, 1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 14, 15, 16, 17, 18, 21, 22, 23, 26, 27, 29, 30, 31, 32, 34, 35, 38, 39, 41, 42, 44, 45, 46, 47, 48, 51, 53, 54, 57, 58, 59, 60, 61, 62, 65, 69, 70, 71, 72, 73, 76, 77, 78, 80, 81, 82, 83, 84, 86, 87, 89, 90, 91, 92, 93, 94

Offset: 1

Author

Jaroslav Krizek, Feb 09 2014

Keywords

• nonn

Comments

Complement of A045765.

Examples

			10 is in sequence because A049820(14) = 14 - A000005(14) = 14 - 4 = 10.
		

Links

• Jaroslav Krizek, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A049820, A236561, A236565.

Programs

Mathematica

Take[Sort@ DeleteDuplicates@ Table[n - DivisorSigma[0, n], {n, 1200}], 67] (* Michael De Vlieger, Oct 13 2015 *)

Formula

A060990(a(n)) > 0.