Open puzzles

sequence

1 2 8 16 19 25 35 50 100 200 300 400 500 600 700 740 800 1000 2000

proto

10 20 30 40 100

js

1 2 3 5 30 200

gore

2 3 4 5 6 7 10 12 13 15 16 18 20 21 45