4 rows...of 18 each............................starting at row 4.....symmetry.......4 - 7.........rows, 4 - 7.........like the prime number.....47.............and what the 1st 10 digits of e add up to ..........72 elements........4 - 7.................................4.5 of a difference between e to the 1.......truncated at its 1st 2 numbers....like the critical line at 1/2......and 7.2.......e squared...using 2.7......as e