Hi, Please can someone help me. I'm doing T-totals course work and I need an example of an upside down T-shape? If you don't have a clue what I'm on about never mind. But I found an example of a normal T-shape.

e.g. 9by 9 grid as g by g. 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81. 1+2+3+11+20=37. The T-total is 37. The T-number is 20. n+(n-9)+(n-18)+(n-18+1)+(n-18-1)=5n-63.