A084972 When A058033 first reaches n.

1, 2, 3, 4, 7, 12, 20, 35, 57, 102, 182, 323, 585, 1061, 1943, 3521, 6606

Offset: 1

Author

Robert G. Wilson v, May 22 2003

Keywords

• nonn

Crossrefs

Cf. A058033.

Programs

Mathematica

Primorial[n_] := Product[Prime[i], {i, 1, n}]; f[n_] := Block[{k = 2, p = 1}, While[q = Floor[ Log[2, Primorial[k]]]; q - p != n, k++; p = q]; k - 1]; Table[ f[n], {n, 1, 17}]