Hi

I thought this was a Pascal triangle - but I don't believe it is now. Or at least I know it is NOT 'the' Pascal triangle... maybe it was another variant he came up with.

Does anyone know who or where this came from?

The triangle is made up in effect the opposite way to Pascal's - in that the number above is the sum of the two below

ALSO 9's are cast out [so if the numbers below were 7 + 7... the number above those two would be 5 and not a double digit number - i.e. 14]

Example:

9

8 1

7 1 9

4 3 7 2

3 1 2 5 6

Anyone have any origin info - or background to anything I can bring up in relation to it's history [?]

Thanks for any help

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