A086141 Permutation of A025487 (least prime signatures) which, when values are factored, exhibit self-similarity (cf. A008687).

1, 2, 4, 6, 8, 12, 36, 30, 16, 24, 72, 60, 216, 180, 900, 210, 32, 48, 144, 120, 432, 360, 1800, 420, 1296, 1080, 5400, 1260, 27000, 6300, 44100, 2310, 64, 96, 288, 240, 864, 720, 3600, 840, 2592, 2160, 10800, 2520, 54000, 12600, 88200, 4620, 7776, 6480

Offset

1,2

Links

Table of n, a(n) for n=1..50.

Example

Factored sequences are
1
0 2 0 3 0 3 0 5 0 3 0 5 0 5 0 7 ...
0 0 4 2 0 0 9 3 0 0 9 3 0 0 25 5 ...
0 0 0 0 8 4 4 2 0 0 0 0 27 9 9 3 ...
0 0 0 0 0 0 0 0 16 8 8 4 8 4 4 2 ...
yielding
1 2 4 6 8 12 36 30 16 24 72 60 216 180 900 210 ...

Crossrefs

Cf. A008687, A080801.

Sequence in context: A303555 A136101 A187779 * A067883 A325557 A283769

Adjacent sequences: A086138 A086139 A086140 * A086142 A086143 A086144

Keyword

nonn

Author

Alford Arnold, Aug 24 2003

Status

approved