Number order on a European wheel: 0, 32, 15, 19, 4, 21, 2, 25, 17, 34, 6, 27, 13, 36, 11, 30, 8, 23, 10, 5, 24, 16, 33, 1, 20, 14, 31, 9, 22, 18, 29, 7, 28, 12, 35, 3, 26.
Series
Series are bets on sections of the wheel: Voisins (the big series around zero) — 9 chips, Tiers — 6, Orphelins — 5, 0-Spiel — 4.
«What the series plays for» is the value of one chip: the amount divided by the series' chips, rounded down to a multiple of 5. Voisins for 900 plays for 100.
On large amounts some positions of the series hit their maximum, and the rest is divided by fewer chips: Voisins 7, 0-Spiel 3, Orphelins 4 (Tiers stays at 6).