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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
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
KEYWORD
nonn,easy,tabf
AUTHOR
Michael De Vlieger, Apr 28 2017
STATUS
approved