AWK迴環數字

awk -vN=1296 'BEGIN{n = (int(sqrt(N) / 2) - sqrt(N) / 2) ? (int(sqrt(N) / 2) + 1) : (int(sqrt(N) / 2));for(i = 1;i <= 2 n;i++){for(j = 1;j <= 2 n;j++){if(j + i - 1 < 2 n){r = (j >= i) ? (n - i + 1) : (n - j + 1);v = (j >= i) ? (4 (n - i)^2 - j - i + 2 n + 1) : (4 (n - j)^2 - 3 j + i + 2 n + 1);} else {r = (j <= i) ? (i - n) : (j - nj);v = (j <= i) ? (4 (i - n - 1)^2 + j + 5 i - 6 n - 3) : (4 (j - n - 1)^2 + 7 j - i - 6 n - 3)}srand(r);printf("\033["(30 + int(1 + 9 * rand()))"m%4s\033[m", (v > N) ? "" : v);}print ""}}'