A113314 a(n) is the index k such that A111118(k) = n.

1, 4, 11, 680, 2, 28, 9, 65, 7, 26, 3, 146, 5, 63, 24, 317, 22, 61, 20, 144, 3038, 18, 6, 59, 16, 8, 142, 10, 14, 57, 12, 315, 55, 140, 53, 6353, 313, 51, 138, 49, 678, 136, 47, 1441, 45, 134, 43, 311, 676, 41, 132, 13, 39, 309, 15, 37, 17, 130, 19, 35, 3036, 21, 33, 23

Offset: 1

Author

Klaus Brockhaus, Oct 25 2005

Keywords

• nonn

Examples

			A111118(680) = 4, hence a(4) = 680.
		

Crossrefs

Cf. A111118, A111187.