610685domain: NAppears in sequencesPositive numbers y such that y^2 is of the form x^2 + (x+127)^2 with integer x.at n=15A159466Number of maximal subsets of {1..n} containing no sums or products of distinct elements.at n=44A326025Number of maximal subsets of {1..n} containing no sums of distinct elements.at n=44A326498