static int nthTerm ( int N ) {
  return ( 2 * N + 3 ) * ( 2 * N + 3 ) - 2 * N ;
}

static int nthTerm ( int N ) { return ( 2 * N + 3 ) * ( 2 * N + 3 ) - 2 * N ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (return_statement (binary_expression left: (binary_expression left: (parenthesized_expression (binary_expression left: (binary_expression left: (decimal_integer_literal) right: (identifier)) right: (decimal_integer_literal))) right: (parenthesized_expression (binary_expression left: (binary_expression left: (decimal_integer_literal) right: (identifier)) right: (decimal_integer_literal)))) right: (binary_expression left: (decimal_integer_literal) right: (identifier))))))