how many formations of 4 digits in each of the 7 positions only pairs 0,2,4,6,8
ex=only even digit formations 0,2,4,6,8,
no repetition of digits ie digits without repeating
4,6,8.0=yes
4,6,8.8 = no because it repeats a digit
the formations must be distributed in 7 positions
the difficulty will be how to use 7 positions for 5 even digits using 4 digit formation without repeats ,
attention, the formations without repeating digits must transit (occupy the ones below the 7 positions) not simply make 0,2,4,6,8 by 4, the formations must occupy the 7 positions, that is, keep 3 blank spaces.
we know that 7 positions in 4 different digits have 35 chisels, for example the 8th digit has circular in the 4 options ie it is not crescent.
ex=only even digit formations 0,2,4,6,8,
no repetition of digits ie digits without repeating
4,6,8.0=yes
4,6,8.8 = no because it repeats a digit
the formations must be distributed in 7 positions
the difficulty will be how to use 7 positions for 5 even digits using 4 digit formation without repeats ,
attention, the formations without repeating digits must transit (occupy the ones below the 7 positions) not simply make 0,2,4,6,8 by 4, the formations must occupy the 7 positions, that is, keep 3 blank spaces.
we know that 7 positions in 4 different digits have 35 chisels, for example the 8th digit has circular in the 4 options ie it is not crescent.