A379446 a(n) is the number of ones in the binary expansion of 10^(10^n).

2, 11, 105, 1163, 11683, 115979, 1161413, 11606847, 116093517, 1160951533, 11609679812, 116096181467, 1160963225086

Offset

0,1

Links

Table of n, a(n) for n=0..12.

Formula

Conjectured: Limit_{n->oo} a(n)/10^n = log(5)/log(4). (A153201)

Prog

(PARI) a379446(n) = hammingweight(5^(10^n))

Crossrefs

Cf. A000120, A011557, A118738, A153201, A379448.

Sequence in context: A111535 A268294 A364338 * A375457 A207571 A351331

Adjacent sequences: A379443 A379444 A379445 * A379447 A379448 A379449

Keyword

nonn,base,more

Author

Hugo Pfoertner, Dec 26 2024

Extensions

a(12) from Markus Sigg, Dec 28 2024

Status

approved