Is there one that works them out ?
2007-02-15 01:54:32 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
I don't think there are any websites that work out number sequences by you putting in numbers from the sequence and it figuring out the formula and/or other numbers in the sequence.
There are some that use examples of sequences, or list common ones, but I don't think that's what you're looking for.
2007-02-15 02:19:10 · answer #1 · answered by MamaMia © 7 · 0⤊ 0⤋
The Online Encyclopedia of Integer Sequences is the only one that springs to mind, but it's complicated and only has 'notable' ones in.
http://www.research.att.com/~njas/sequences/Seis.html if it's any good to you.
2007-02-15 02:46:54 · answer #2 · answered by Anonymous · 1⤊ 0⤋
Use the formula
d(n-1)+a
d=common difference
a=1st term
or e(n-2)(n-1) + d(n-1) + a
e = 2nd difference
2007-02-15 21:15:21 · answer #3 · answered by Paul B 3 · 0⤊ 0⤋