"Intertwined" means things that are connected or twisted together. "Linked" best expresses this connection.
8 20 36 56 80 ?
112 162 199 ? 242 252
...9256 6844 4888 3350 2152 1276
...640 320 160 ? 40 20
If 2, 7, 20, x , 110, 235,
Then, 7 x + 7√x = ?
15 12 ? 9 21 6
...30 32 67 206 ? 4166
3 4.5 6.75 10.125 15.1875 22.78125 ?
...203, 223, 198, 218, ?, 213
362 284 393 451 144 221
...
