1

1 = 1²³⁴⁵⁶⁷

1 = 98 − 76 − 54 + 32 + 1

1 = 0^5 − 1^8 + 2^9 + 3^7 − 4^6 + 5^4 + 6^2 + 7^0 + 8^1 + 9^3

\( {\displaystyle 1 = (9b^{4})^{3}+(3b-9b^{4})^{3}+(1-9b^{3})^{3} } \)

1 = \( (1 - 9t^{3} + 648t^{6} + 3888^t{9})^3 + (- 135t^{4} + 3888t^ {10})^3 +(3t - 81t^{4} - 1296t^{7} - 3888t^{10})^3 \)

1 = .44/.4 4 = 4.4/4.4 = 44!/44! = (4/4) + 4 - 4 (four 4s)

1 = 0^5 − 1^8 + 2^9 + 3^7 − 4^6 + 564 + 6^2 + 7^0 + 8^1 + 9^3

Strobogrammatic number: the same upside down.

Number k such that (7*10^k + 71)/3 is prime

Numbers k such that (35*10^k - 11)/3 is prime (113)

Number k such that (11*10^k + 19)/3 is prime (43)

Number k such that (16*10^k - 31)/3 is prime.

Number k such that 8*10^k - 49 is prime. (31)

Number of prime knots with 4 crossings.

Number of prime knots with 3 crossings.

0 <--- ---> 2

Representations, Binary to Hexadecimal:

1_2
1_3
1_4
1_5
1_6
1_7
1_8
1_9
1_11
1_12
1_13
1_14
1_15
1_16