Mysterious sequence found on alien rock:

Whats the next number?
15, 7, 378, 512, (?)

Originally posted by sonhouse
Whats the next number?
15, 7, 378, 512, (?)

There's a deafening silence about this one. I'm stumped anyway

Originally posted by Kirwan
There's a deafening silence about this one. I'm stumped anyway

well there Is an answer...

Originally posted by sonhouse
well there Is an answer...

Who wudda thunk it?

Originally posted by sonhouse
Whats the next number?
15, 7, 378, 512, (?)

the next number, i would have to assume, would be x, with x being between positive and negative infinity

Originally posted by ketch90
the next number, i would have to assume, would be x, with x being between positive and negative infinity

well duh

Originally posted by sofar55
well duh

Well its an assumption. You can work with that, narrows it down
quite a bit, eh!

idk you tell me

15109 ... someone has to guess something.

Originally posted by Balla88
15109 ... someone has to guess something.

Well its less than 15109. That almost eliminates an entire infinity
right there.

8734 ... hmk ok so having tried many things can you tell us whether it is some kind of mathematical progression or more of a pattern type thing.

Originally posted by Balla88
8734 ... hmk ok so having tried many things can you tell us whether it is some kind of mathematical progression or more of a pattern type thing.

Ok, I guess I have had you hanging on my every word long enough:
The answer, drum roll,, ,, ,, ,, is:
Its the name of the numbered streets as you go east on route
22 from 15th street, 7th street, 378, 512 and then: 191 🙂
Heck, anyone from Allentown Pa could have told you that🙂

Haha good one. I lived in PA for 4 years, but my Allentown knowledge is very limited, having only been there once.

i live in PA i think?

Originally posted by rubikscuber
i live in PA i think?

I live in Pa, I think, therefore I am not in New Jersey?