A111679 The n-th row of the following triangle contains n distinct numbers with prime signature of n not included earlier. Sequence contains the triangle read by rows.

1, 2, 3, 5, 7, 11, 4, 9, 25, 49, 13, 17, 19, 23, 29, 6, 10, 14, 15, 21, 22, 31, 37, 41, 43, 47, 53, 59, 8, 27, 125, 343, 1331, 2197, 4913, 6859, 121, 169, 289, 361, 529, 841, 961, 1369, 1681, 26, 33, 34, 35, 38, 39, 46, 51, 55, 57, 61, 67, 71, 73, 79, 83, 89, 97, 101

Offset

1,2

Links

Table of n, a(n) for n=1..64.

Example

Another rearrangement of natural numbers.
1
2 3
5 7 11
4 9 25 49
13 17 19 23 29
6 10 14 15 21 22
...

Crossrefs

Cf. A111680, A111681.

Sequence in context: A084408 A257347 A143345 * A349872 A087174 A071963

Adjacent sequences: A111676 A111677 A111678 * A111680 A111681 A111682

Keyword

nonn,tabl

Author

Amarnath Murthy, Aug 16 2005

Extensions

Extended by Ray Chandler, Sep 01 2005

Status

approved