OFFSET
1,3
COMMENTS
This sequence is a multiplicative variant of A331614.
This sequence is unbounded.
LINKS
Rémy Sigrist, Table of n, a(n) for n = 1..10000
Rémy Sigrist, C program for A332518
EXAMPLE
The first terms, alongside the corresponding products, are:
n a(n) Products
-- ---- --------
1 1 a(1)
2 1 a(1), a(1)*a(2), a(2)
3 3 a(1)*a(2)*a(3), a(2)*a(3), a(3)
4 3 a(1)*a(2)*a(3), a(2)*a(3), a(3), a(4)
5 4 a(5)
6 1 a(1), a(1)*a(2), a(2), a(6)
7 4 a(5), a(5)*a(6), a(6)*a(7), a(7)
8 4 a(5), a(5)*a(6), a(6)*a(7), a(7), a(8)
9 5 a(9)
10 1 a(1), a(1)*a(2), a(2), a(6), a(10)
11 5 a(9), a(9)*a(10), a(10)*a(11), a(11)
12 4 a(5), a(5)*a(6), a(6)*a(7), a(7), a(8), a(12)
PROG
(C) See Links section.
CROSSREFS
KEYWORD
nonn
AUTHOR
Rémy Sigrist, Feb 15 2020
STATUS
approved