perplexus.info :: Numbers : Geo Pyramid

Geo Pyramid (Posted on 2008-12-16)

A figurate number stack is built using only the digits 0 through 9 exactly once.

Each tier is a figurate number of the order labelled; no number has a leading zero.

How many solutions can you offer?

See The Solution Submitted by brianjn

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re: a solution

| Comment 3 of 5 |

(In reply to a solution by Dej Mar)

Sorry about what is apparently again my poor attention to definitions.

Yes, we do consider "unit" as being one don't we? I was considering the term much as Charlie has interpreted it, like in HTU, Unit digits.

Posted by brianjn on 2008-12-17 20:24:57

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