45
The next number is 485.
485
485
335
379, but it does not complete the sequence which is infinite.
each number is 3 times the last plus 2
1 + (4) = 5 5 + (4x3) = 17 17 + (4x3x3) = 53 53 + (4x3x3x3) = 161 161 + (4x3x3x3x3) = ?
491
The seed number is 1, thereafter each number is 2 + (3 x the previous number). 2 + 3x1 = 5 2 + 3x5 = 17 2 + 3x17 = 53 2 + 3x53 = 161 2 + 3x161 = 485
Try: 161+324 = 485 would seem to fit the pattern
Well, that's kind of an awkward way to say it, but if the 45 and the 28 are thelengths of the legs of a right triangle, then the Pythagorean Theorem tells us thatthe length of the hypotenuse is 53.
53 is an odd number - 53/2 = 26.5.