User:Waldyrious/Powers of two

Recursive powers of two in various notations

decimal	2^2^n (oeis:A001146)		repeated exponentiation (power tower)	doubling repeated multiplication	squaring of previous term	Knuth's up-arrow notation		hexadecimal	binary	human-scale term
$1$	$2^{0}$							0x1	0b1	single
$2$	$2^{1}$	$2^{\left({2^{\color {redorange}0}}\right)}$	$2$	$2$				0x2	0b10	couple
$4$	$2^{2}$	$2^{\left({2^{\color {redorange}1}}\right)}$	$2^{2}$	$2\cdot 2$	$2\cdot 2$	$2\uparrow 2$	$2\uparrow ^{\color {redorange}1}2$	0x4	0b100	handful
$16$	$2^{4}$	$2^{\left({2^{\color {redorange}2}}\right)}$	$2^{2^{2}}$	$2\cdot 2\cdot 2\cdot 2$	$4\cdot 4$	$2\uparrow \uparrow 2$	$2\uparrow ^{\color {redorange}2}2$	0x10	0b10000	bunch
$256$	$2^{8}$	$2^{\left({2^{\color {redorange}3}}\right)}$	$2^{2^{2^{2}}}$	$2\cdot 2\cdot 2\cdot 2\cdot 2\cdot 2\cdot 2\cdot 2$	$16\cdot 16$	$2\uparrow \uparrow \uparrow 2$	$2\uparrow ^{\color {redorange}3}2$	0x100	0b100000000	lot
$65536$	$2^{16}$	$2^{\left({2^{\color {redorange}4}}\right)}$	...	...	$256\cdot 256$	$2\uparrow \uparrow \uparrow \uparrow 2$	$2\uparrow ^{\color {redorange}4}2$	0x10000	...	ton
$4294967296$	$2^{32}$	$2^{\left({2^{\color {redorange}5}}\right)}$	...	...	$65536\cdot 65536$	$2\uparrow \uparrow \uparrow \uparrow \uparrow 2$	$2\uparrow ^{\color {redorange}5}2$	0x100000000	...	N/A
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