foo 4 bar
1 baz foobar 20

# [0, 1, 4, 15, 56, 209, 780, 2911, 10864, 40545, 151316, 564719, 2107560, 7865521, 29354524, 109552575, 408855776, 1525870529, 1399659044, -222201649, 2006501656]
# 7: 2911 2401