A278107 a(n) is the first k such that A277515(k) is the n-th prime.

1, 49, 5, 21, 10, 174, 27, 223, 1656, 3901, 1286, 1847, 5095, 3117, 5678, 1727, 14844, 23678, 10986, 33868, 41241, 42794, 50451, 35301, 39546, 206241, 10561, 89600, 50075, 87273, 75922, 142760, 3493, 236213, 277242, 805287, 619149, 333339

Offset: 2

Author

Robert G. Wilson v, Nov 17 2016, and Jason Kimberley, Dec 11 2016

Keywords

• nonn

Comments

Eggleton et al. show that every prime greater than two occurs in A277515; moreover, each such prime occurs an infinite number of times.

References

• R. B. Eggleton, J. S. Kimberley and J. A. MacDougall, Square-free rank of integers, submitted.

Links

• Robert G. Wilson v and Jason Kimberley, Table of n, a(n) for n = 2..62

Crossrefs

Cf. A000040, A277515.

Formula

A277515(a(n)) = A000040(n).