S000568


First prime that begins a range of composite numbers containing n squarefree numbers.

2, 5, 13, 31, 89, 139, 113, 199, 211, 317, 1759, 1381, 1951, 887, 4523, 2179, 2477, 4831, 5351, 4297, 1327, 9973, 14107, 19333, 16141, 20809, 15683, 37907, 28229, 58831, 31907, 19609, 25471, 40289, 114493, 43331, 44293, 34061, 191353, 31397, 107377, 134513

0

S000568

The paper by Maier and Rassias does not contain this sequence.

T. D. Noe, Plot of 101 terms

T. D. Noe, Table of 101 terms

Helmut Maier and Michael Th. Rassias, Large gaps between consecutive prime numbers containing square-free numbers and perfect powers of prime numbers, arXiv 1504.01645 (Apr 7 2015)

(Mma) nn = 50; sf = Table[0, {nn}]; found = 0; n = 1; While[found < nn, n++; c = Count[Table[SquareFreeQ[i], {i, Prime[n] + 1, Prime[n + 1] - 1}], True]; If[0 < c <= nn && sf[[c]] == 0, sf[[c]] = n; found++]]; Join[{2}, Prime[sf]]

Cf. S000569.

nonn,hard

T. D. Noe, Apr 10 2015

© Tony D Noe 2014-2015