OFFSET
1,2
COMMENTS
EXAMPLE
The first terms, alongside their product, are:
n a(n) a(1) * ... * a(n)
-- ----- ------------------
1 1 1
2 2 2
3 3 6
4 10 60
5 11 660
6 100 66000
7 101 6666000
8 1000 6666000000
9 10000 66660000000000
10 10001 666666660000000000
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
Rémy Sigrist, Jun 16 2021
STATUS
approved