C:\Users\XXX\Documents\0Legend>wget --load-cookies cookies.txt https://ncode.syosetu.com/txtdownload/dlstart/N3726BT/1160495/?no={1..2000}&hankaku=0&code=utf-8&kaigyo=crlf
--2019-05-14 20:49:02--  https://ncode.syosetu.com/txtdownload/dlstart/N3726BT/1160495/?no=%7B1..2000%7D
Resolving ncode.syosetu.com (ncode.syosetu.com)... 203.137.165.222
Connecting to ncode.syosetu.com (ncode.syosetu.com)|203.137.165.222|:443... connected.
HTTP request sent, awaiting response... 301 Moved Permanently
Location: https://ncode.syosetu.com/txtdownload/dlstart/n3726bt/1160495/?no=%7b1..2000%7d [following]
--2019-05-14 20:49:03--  https://ncode.syosetu.com/txtdownload/dlstart/n3726bt/1160495/?no=%7B1..2000%7D
Connecting to ncode.syosetu.com (ncode.syosetu.com)|203.137.165.222|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://ssl.syosetu.com/login/input/ [following]
--2019-05-14 20:49:04--  https://ssl.syosetu.com/login/input/
Resolving ssl.syosetu.com (ssl.syosetu.com)... 175.184.121.81, 111.171.223.39, 111.171.222.57
Connecting to ssl.syosetu.com (ssl.syosetu.com)|175.184.121.81|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 5354 (5,2K) [text/html]
Saving to: 'index.html@no={1..2000}'

index.html@no={1..2000}       100%[=================================================>]   5,23K  --.-KB/s    in 0,002s

2019-05-14 20:49:05 (3,24 MB/s) - 'index.html@no={1..2000}' saved [5354/5354]

Der Befehl "hankaku" ist entweder falsch geschrieben oder
konnte nicht gefunden werden.
Der Befehl "code" ist entweder falsch geschrieben oder
konnte nicht gefunden werden.
Der Befehl "kaigyo" ist entweder falsch geschrieben oder
konnte nicht gefunden werden.

Translation of the last bit:
"The command "hankaku" is either misspelled or couldn't be found."
"The command "code" is either misspelled or couldn't be found."
"The command "kaigyo" is either mispelled or couldn't be found."