Theses are Values are correct: ans^ans band by @MEMJG :(256^256)^(256^256) ≈ 3.9844342006 * 10^(1.9923739028 * 10^619) Moser polygon blocks band by @azulito_ (former Mr1Blue):3[4] = 3^3^85 ≈ 1.67 * (1.7137024398 * 10^40) Self-Tetrated-blocks band by @Kareem_j32:4^^4 ≈ 2.361022 * 10^(8.0723 * 10^153). Incorrect: (256^256)^(256^256) first digits is not 983, 3[4] is not 3^2187, 4^^4 is not 4^256 Please fix to creators of numberblocks fan-made bands of wrong values of numbers