[seqfan] in oeis absent primes

[юрий герасимов]

Dear SeqFans, 

in OEIS absnt primes of the form: 

(x - y)^(x + y) - y^2: 177131, 1162261403, 186264514923095702981, 22168378200531005859371, 26588814358957503287303, ...

(x - y)^(x + y) - x^2: 7, 227, 1594259, 19073486327981, ...

x^x - (x - y)^(x + y): 2, 3, 5, 11, 13, 257, 186264523839196151381, 27368747340097693559, 1122274146401882171630859631, ...

JSG.