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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. 2
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 (list; table; graph; refs; listen; history; text; internal format)
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 * A087174 A071963 A224075

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

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Last modified March 18 13:47 EDT 2019. Contains 321289 sequences. (Running on oeis4.)