From the command linefdb · curl
fdb
fdb seq view '21144' --type 89 --part last20
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"sequence_view","params":{"start":{"expr":"21144"},"type":89,"part":"last20","fr":0}}'