#05AB1E, length 22
This is probably too easy.
Regex (PCRE)
^([E-Z0]*[ˆ>*}<]){7}$ Output
[[1, 2, 3, 4], [8, 7, 6, 5], [9, 10, 11, 12], [16, 15, 14, 13]] #05AB1E, length 22
This is probably too easy.
Regex (PCRE)
^([E-Z0]*[ˆ>*}<]){7}$ Output
[[1, 2, 3, 4], [8, 7, 6, 5], [9, 10, 11, 12], [16, 15, 14, 13]]