Numbers n such that n-1, n and n+1 can be expressed as a sum of 2 squares in at least 2 ways.

Terms

a(0) =22049a(1) =26281a(2) =26441a(3) =29521a(4) =34281a(5) =47889a(6) =51209a(7) =56745a(8) =66249a(9) =68561a(10) =72593a(11) =74665a(12) =84241a(13) =92241a(14) =96841a(15) =98569a(16) =100369a(17) =103121a(18) =103689a(19) =105481a(20) =105705a(21) =109225a(22) =109513a(23) =117449a(24) =119249a(25) =124073a(26) =125801a(27) =126801a(28) =135441a(29) =139465