The Chipko Movement was a forest conservation movement in India aimed at protecting trees.
The number of terms in the sequence 5, 20, 80, 320,……………., 5120 is:
1930 1805 1589 1246 734 ?
...4 14 44 124 404
...362Â Â Â 284Â Â Â 393Â Â Â Â 451Â Â Â Â 144Â Â Â Â Â 221
...4 ? 113 449 1343 2681
...61 71 86 ? 131 161
...13 182 303 384 433 ?
...157, 159, 189, 319, ‘?’, 1 407 , 2749 Â
18Â Â Â Â Â Â Â Â Â Â 434Â Â Â Â Â Â Â Â 642Â Â Â Â Â Â Â Â 746Â Â Â Â Â Â Â Â 798Â Â Â Â Â Â Â Â ?
...440                 482              526                  572                ?  Â...
