An algorithm starts with a single square and on each of its next iterations adds new squares all around the outside as shown below.
S S S S
S S S S S S S S S
S S S S
n = 1 n = 2 n = 3
How many unit squares will there be after the nth iteration?
Find the peak 3n+1 sequence value
Set some matrix elements to zero
Narcissistic number ?
007: Chinese Barrack Invasion
Toads and Frogs Puzzle 2
Nodal Voltage of Resistor Ladder Network
Expand 10^n to Powers of 4
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