static int centeredSquare_number ( int N ) {
  float n = ( 9 + ( float ) Math . sqrt ( 36 * N + 45 ) ) / 18 ;
  if ( n - ( int ) n == 0 ) return 1 ;
  else return 0 ;
}

static int centeredSquare_number ( int N ) { float n = ( 9 + ( float ) Math . sqrt ( 36 * N + 45 ) ) / 18 ; if ( n - ( int ) n == 0 ) return 1 ; else return 0 ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (floating_point_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (parenthesized_expression (binary_expression left: (decimal_integer_literal) right: (cast_expression type: (floating_point_type) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (binary_expression left: (decimal_integer_literal) right: (identifier)) right: (decimal_integer_literal))))))) right: (decimal_integer_literal)))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (cast_expression type: (integral_type) value: (identifier))) right: (decimal_integer_literal))) consequence: (return_statement (decimal_integer_literal)) alternative: (return_statement (decimal_integer_literal)))))