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A343041
a(0) = 0 and for any n > 0, a(n) = A343040(a(n-1), n).
2
0, 1, 3, 3, 5, 5, 11, 11, 11, 11, 11, 11, 17, 17, 17, 17, 17, 17, 23, 23, 23, 23, 23, 23, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71
OFFSET
0,3
COMMENTS
This sequence has similarities with A087052.
If we remove duplicate terms, then we obtain A200748.
The value A200748(k) appears A130493(k) times for any k > 0.
EXAMPLE
The first terms, in decimal and in factorial base, are:
n a(n) fact(n) fact(a(n))
-- ---- ------- ----------
0 0 0 0
1 1 1 1
2 3 10 11
3 3 11 11
4 5 20 21
5 5 21 21
6 11 100 121
7 11 101 121
8 11 110 121
9 11 111 121
10 11 120 121
11 11 121 121
12 17 200 221
13 17 201 221
14 17 210 221
PROG
(PARI) See Links section.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Rémy Sigrist, Apr 03 2021
STATUS
approved