JetPens in the US has a variety such. Not quite the one here, though.

https://www.jetpens.com/search?q=stamp&v=2

https://www.jetpens.com/Midori-Paintable-Stamp-Pre-Inked-Pla...

https://www.jetpens.com/Nombre-Mizushima-Stamp-Schedule-Week...

https://www.jetpens.com/Shachihata-Daily-Log-Stamp-Weather-a...

Found it here: https://shopfivenine.com/products/rubber-stamp-week

If you do a search for Shimaenaga Weekly Calendar then you’ll find something that’s very similar and may be able to similar ones that work better for you.

I got mine in Japan at a store called Loft, but I suspect that you’d have to pay a substantial mark up to get the same thing elsewhere.

you could get one made for a few bucks.

You have a typo in there. You want https://www.google.com/search?q=%2810%5E100%29%2B1-%2810%5E1... . Google also gets the "wrong answer" for this expression, 0 instead of 1.

This feels like it needs its own post. Just had to check my goto, Qalculate, which similarly gives -10^200

Interesting, my favorite one on Android - HiPER Calc - does it correctly and returns 1.