read `Hardin.txt`:

N:=55:

print(`The first`, N, `terms starting at n=1 of the sequence enumerating 6 by 2*n balanced 0-1 matrices, i.e. where every row and every column has the same number 0s and 1s are`):
print(`In other words OEIS sequence https://oeis.org/A172556a are:`):
print(``):
lprint(SeqB(3,N)):
print(``):

quit: