OFFSET
1,1
LINKS
Rémy Sigrist, Table of n, a(n) for n = 1..11000
Rémy Sigrist, Colored scatterplot of the first 110000 terms (red pixels indicate terms that are prime)
Rémy Sigrist, PARI program for A330384
EXAMPLE
From Rémy Sigrist, Dec 24 2019: (Begin)
The first terms, alongside the corresponding composite numbers, are:
n a(n) Composite
-- ---- ---------
1 4 4
2 6 6
3 8 8
4 9 9
5 1 10
6 0 10
7 2 12
8 5 15
9 7 27
10 3 30
11 10 10
12 12 12
13 14 14
...
79 99 99
80 11 110
81 17 117
82 19 119
83 23 123
(End)
PROG
(PARI) See Links section.
CROSSREFS
KEYWORD
AUTHOR
David Williams, Dec 12 2019
EXTENSIONS
More terms from Rémy Sigrist, Dec 24 2019
STATUS
approved