Interesting patterns with numbers (duh)
ADDITION OF ODD
1 = 1 = 1^2 (^2 means squared)
1+3 = 4 = 2^2
1+3+5 = 9 = 3^2
and so on
ADDITION OF EVEN
2 = 2 = 1x2
2+4 = 6 = 2x3
2+4+6 = 12 = 3x4
and so on
TRIANGLE
1x8 +1 = 9
12x8 +2 = 98
123x8 +3 = 987
and so on
ALL THE ONES
1^2 = 1
11^2 = 121
111^2 = 12321
1111^2 = 1234321
and so on
ALL THE FIVES
5x2 +1 = 11
55x2 +1 = 111
555x2 + 1 = 1111
and so on
MAGIC SQUARE 9
2 7 6
9 5 1
4 3 8
Each row/column/diagonal sum is 15, AND
square each number, then sum of top = sum of bottom, and sum of left = sum of right
Just sum (haha) wierd and wonderful things that i thought was quite cool.