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What is the number of C4, 4+C4, 5+C4, 6+C4, 7+C4, 8+C4, 9 (the number before the comma is above and the number after the comma is below)?
Here, the formula Cm, n+ 1=Cm, n+Cm- 1, n is enough.

Original formula =C5, 5+C4, 5+C4, 6+C4, 7+C4, 8+C4, 9

=C5,6+C4,6+C4,7+C4,8+C4,9

=C5,7+C4,7+C4,8+C4,9

=C5,8+C4,8+C4,9

=C5,9+C4,9

=C5, 10

=252