OFFSET
0,2
LINKS
Rémy Sigrist, PARI program for A331619
EXAMPLE
n a(n) n*2^a(n)
-- ---- --------
0 1 0
1 4 16
2 4 32
3 7 384
4 4 64
5 9 2560
6 4 96
7 8 1792
8 4 128
9 10 9216
10 10 10240
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Rémy Sigrist, Jan 22 2020
STATUS
approved