A030780 a(n) is the least k such that A030777(k) = n.

2, 3, 1, 14, 10, 8, 13, 20, 22, 29, 40, 31, 54, 190, 42, 68, 85, 55, 122, 146, 70, 170, 169, 87, 227, 195, 106, 225, 226, 126, 261, 148, 299, 172, 228, 526, 199, 340, 585, 263, 229, 301, 530, 264, 430, 776, 710, 342, 479, 302, 532, 386, 531, 343, 432, 1749

Offset

1,1

Links

Table of n, a(n) for n=1..56.

Crossrefs

Cf. A030777.

Sequence in context: A079174 A204137 A102583 * A193683 A145643 A338208

Adjacent sequences: A030777 A030778 A030779 * A030781 A030782 A030783

Keyword

nonn

Author

Clark Kimberling

Extensions

Name clarified by Jinyuan Wang, Apr 08 2020

More terms from Sean A. Irvine, Apr 08 2020

Status

approved