Eric, should we assume the unstated constraint that no two cells have the same value? On Tue, Jun 23, 2020 at 12:44 PM Éric Angelini <bk263401@skynet.be> wrote:
Hello Math-Fun, no cell of the hereunder triangle shares any of its digits with another cell of the same rank or column:
+-----+-----+-----+-----+-----+-----+-----+-----+-----+ | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | +-----+-----+-----+-----+-----+-----+-----+-----+-----+ | 22 | 11 | 777 | 666 | 888 | 333 | 444 | 9 | +-----+-----+-----+-----+-----+-----+-----+-----+ | 33 | 8 | 555 | 111 | 222 | 47 | 69 | +-----+-----+-----+-----+-----+-----+-----+ | 44 | 3 | 1 | 59 | 67 | 28 | +-----+-----+-----+-----+-----+-----+ | 55 | 4 | 68 | 27 | 13 | +-----+-----+-----+-----+-----+ | 66 | 5 | 2 | 38 | +-----+-----+-----+-----+ | 77 | 6 | 49 | +-----+-----+-----+ | 88 | 7 | +-----+-----+ | 99 | +-----+
The cell with 68, for instance, doesn't share a 6 or a 8 with a cell above it, below it, on its right or left. Can you beat this triangle-- in terms of "sum of its 45 integers"? (I have 5451 here, I guess) Best, É.
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