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<!DOCTYPE html>
<html>
<!-- challenge: https://www.sololearn.com/Discuss/628136/
proposed by Julian Fechner.
This is the 3-SUM-TRIANGLE for n = 7:
1
1 1
1 3 1
1 5 9 1
1 7 21 31 1
1 9 37 89 121 1
1 1 1 1 1 1 1
EXAMPLE n = 4:
1
1 1
1 3 1
1 1 1 1
- line 1 & 2 are always fix.
- Each number equals the sum of its left,top & top-left neighbour (if all 3 exist!!!).
- the n'th row is allways filled with '1'
made by ysraelcon.
-->
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css
css
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body {
}
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js
js
1
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