read Cfinite:
print(`Here is a full dicovery and proof of the product of three Chebychev polynomials analog`):
print(`of Louis Shapiro's generating function `):
print(`given in his paper   A combinatorial proof of a Chebyshev polynomial identity, Discrete Math. 34 (1981), pages 203-206.`):
KefelV(Kefel(Ux(a),Ux(b)),Ux(c)) :


print(`This took`, time(), `seconds .`):

quit: