Calculating beta decays assuming Widom Larsen neutron production

Well, now that I am more familiar with Widom Larsen, let's say we do another one of these calculator exercises, shall we?

We are assuming only neutrons are added to the nickel nucleus, per Widom Larsen theory. If we were using the BECNF theory, we can add protons, but this is not BECNF, so protons need not apply.

add 1 neutron to nickel 58, yields unstable nickel 59 beta decays by electron capture to cobalt 59

add 1 neutron to cobalt 59 yields unstable cobalt 60 beta minus decay to nickel 60 chain stops here

We assume that the chain stops there, for the sake of simplicity.    The chain picks up again at nickel 62

add 1 neutron to nickel 62 yields unstable nickel 63 beta minus decays to copper 63

add 1 neutron to copper 63 yields unstable copper 64 which beta minus decays to zinc 64

That's not the whole story.  It can also beta minus decay by electron capture to

can also beta decay by electron capture to nickel 64

But lets follow the zinc branch before returning to the nickel branch in the pic above

add 1 neutron to zinc 64 yields zinc 65 which beta decays by electron capture to copper 65

Now let's go back and look at the nickel 64 and what happens there

add 1 neutron to nickel 64 yields unstable nickel 65 which beta minus decays to copper 65

The two lines join again at copper 65 for one more reaction before it ends

add 1 neutron to copper 65 yields unstable copper 66 which beta minus decays to zinc 66

One way to check Widom Larsen would be to check for zinc 66.  In fact, you would really want to look at those transmuted reaction products in order to get a feel for what is going on.

Disclaimer:  all this assumes that I've not made a mistake.  This is amateur hour, remember.