That would do nothing, right?
I mean unless I manage to make something like a 256 pulse generator on one input that's not going to work.
Using multiple decade counters and probably some fewer pulse generators in place of mux, it could be possible to easily convert from binary to decimal.
For example the eighth place signal, 256 (on/off) could be attached to three pulse generators, a double pulse, a quintuple pulse, and a sextuple pulse. The respective pulses from each tens place would go to respective decade counters.
Honestly there are only even digits in the ones place of the binary place values, (and also one) so one would only need to build not as many pulse generators.
I wouldn't risk trying to make the design using only 9, however; and gates and timing with that probably won't work, at least to my understanding. (Haven't really thought it out though)
Pulse Generator Digits needed using this theory to 16bit:
HUNDREDS: 0123 5 7 TENS: 123456 89 ONES: 12 4 6 8