Does anyone know what this number is called?

I was thinking of a number and I decided to multiply it by itself. Then I added 1, as can often happen. Next I added twice the original number to the tally. Feeling somewhat exhilarated I exponentiated the lot to the power 0.5 after which I subtracted the original number. Finally I subtracted 2 then found the square root of that result. All that was left is a letter. I would like to give it a name. Any suggestions?