These return the row corresponding to rounds, queens, kings, tittums and
reverse rounds respectively on n bells.
— Function: static row row::pblh (int n, int h = 1);
This returns the first lead head of Plain Bob (h = 1), Grandsire
(h = 2), or more generally the Plain Bob type method on n
bells with h hunt bells.
— Function: static row row::cyclic (int n, int h = 1, int c = 1);
This returns a cyclic row on n bells with h initial fixed
(hunt) bells. The variable c controls the number of bells moved
from the front of the row to the end. Thus, cyclic(6,1,2) == "145623".