I can't find the core variant. I'm using an Arduino Uno R4 Minima.
I did find a different pin that was cycling up and down every second. So I started testing different values for the output pin numbers one at a time. I mapped pins 2 - 10 to the actual physical pin that each one activated on the ATTiny44, but I couldn't find a physical pin activated for pins 11-13 as used in the program. I don't understand why. Every pin on the device should be able to be used as an output except pins 1 and 14 which are vcc and ground pins.
I remain grateful for your help.