OFFSET
0,3
LINKS
Michael De Vlieger, Table of n, a(n) for n = 0..16384
FORMULA
a(n) = A070939(n^2) for n > 0; a(0) = 0 by convention.
MATHEMATICA
Array[IntegerLength[#^2, 2] &, 90, 0] (* Michael De Vlieger, Dec 16 2022 *)
PROG
(PARI) for (k=0, 70, print1(#binary(k^2), ", "))
(Python)
def A358700(n): return (n**2).bit_length() # Chai Wah Wu, Dec 16 2022
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Hugo Pfoertner, Dec 16 2022
STATUS
approved