It stands out to me because it always reduce to the single digit of 9. If you used halving. 1, 2, 4, 8,16, 32, 64,128, 256, 512,1024, 2048. I understand if it sounds stupid, but I think there is another meaning for the numbers 1-9 outside of being a reference for counting. I do not do a great job of making things understandable I admit. What is significant about it? Well maybe nothing. Its just something I find interesting.