A235176 Numbers k such that the sum of the first k refactorable numbers (A033950) is also a refactorable number.

1, 47, 125, 131, 185, 187, 189, 191, 198, 201, 204, 206, 256, 257, 262, 264, 268, 276, 283, 285, 294, 800, 809, 812, 818, 822, 824, 827, 829, 840, 844, 848, 1076, 1080, 1118, 1119, 1133, 1135, 1151, 1153, 1164, 1171, 1175, 1183, 1186, 1189, 1195, 1208, 1210

Offset

1,2

Links

Giovanni Resta, Table of n, a(n) for n = 1..1000

Example

The sum of the first 47 terms of A033950 equals 9120, which is A033950(616).

Crossrefs

Cf. A033950, A235177.

Sequence in context: A114646 A239686 A118091 * A044298 A044679 A350863

Adjacent sequences: A235173 A235174 A235175 * A235177 A235178 A235179

Keyword

nonn

Author

Ivan N. Ianakiev, Jan 04 2014

Extensions

a(8)-a(49) from Giovanni Resta, Jan 04 2014

Status

approved