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A285904 Partial row products of table A027746, prime factors with repetition, reversed. 1
1, 2, 3, 2, 4, 5, 3, 6, 7, 2, 4, 8, 3, 9, 5, 10, 11, 3, 6, 12, 13, 7, 14, 5, 15, 2, 4, 8, 16, 17, 3, 9, 18, 19, 5, 10, 20, 7, 21, 11, 22, 23, 3, 6, 12, 24, 5, 25, 13, 26, 3, 9, 27, 7, 14, 28, 29, 5, 15, 30, 31, 2, 4, 8, 16, 32, 11, 33, 17, 34, 7, 35, 3, 9, 18, 36, 37 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

T(n,1) = A006530(n); T(n,A001222(n)) = n.

LINKS

Michael De Vlieger, Table of n, a(n) for n = 1..15568 (rows 1 <= n <= 5000).

EXAMPLE

.   n |   T(n,*)       |   A027746(n,*)

. ----+----------------+----------------

.   1 |   1            |   1

.   2 |   2            |   2

.   3 |   3            |   3

.   4 |   2, 4         |   2, 2

.   5 |   5            |   5

.   6 |   3, 6         |   2, 3

.   7 |   7            |   7

.   8 |   2, 4, 8      |   2, 2, 2

.   9 |   3, 9         |   3, 3

.  10 |   5, 10        |   2, 5

.  11 |   11           |   11

.  12 |   3, 6, 12     |   2, 2, 3

.  13 |   13           |   13

.  14 |   7, 14        |   2, 7

.  15 |   5, 15        |   3, 5

.  16 |   2, 4, 8, 16  |   2, 2, 2, 2

.  17 |   17           |   17

.  18 |   3, 9, 18     |   2, 3, 3

.  19 |   19           |   19

.  20 |   5, 10, 20    |   2, 2, 5

MATHEMATICA

Table[FoldList[Times, Reverse@ Flatten[FactorInteger[n] /. {p_, e_} /; e > 0 :> ConstantArray[p, e]]], {n, 37}] // Flatten (* Michael De Vlieger, Apr 28 2017 *)

CROSSREFS

Cf. A001222, A006530, A027746, A265110.

Sequence in context: A286533 A172520 A290094 * A285714 A161908 A026358

Adjacent sequences:  A285901 A285902 A285903 * A285905 A285906 A285907

KEYWORD

nonn,easy,tabf

AUTHOR

Michael De Vlieger, Apr 28 2017

STATUS

approved

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Last modified February 19 16:02 EST 2019. Contains 320311 sequences. (Running on oeis4.)