Positions of squares in A048153.

Terms

a(0) =1a(1) =2a(2) =33a(3) =51a(4) =69a(5) =105a(6) =195a(7) =250a(8) =294a(9) =1250a(10) =4913a(11) =9583a(12) =13778a(13) =48778a(14) =65603a(15) =83521a(16) =111265a(17) =228939a(18) =651695a(19) =984150a(20) =1414562a(21) =1857848a(22) =2668626a(23) =5643110a(24) =6295726a(25) =10091354