OFFSET
1,2
LINKS
Antti Karttunen, Table of n, a(n) for n = 1..16384
FORMULA
MATHEMATICA
Array[GCD[DivisorSigma[1, #], IntegerExponent[(2 #)!, 2]] &, 105] (* Michael De Vlieger, Nov 26 2017 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, Nov 25 2017
STATUS
approved