OFFSET
1,1
COMMENTS
a(36) = 496793088000. a(37) = 980922617856. a(38) = 209584584000. a(39) = 644972544000. a(42) = 970299000000. - Donovan Johnson, Nov 13 2010
FORMULA
{min k: A025469(k) = n}. - R. J. Mathar, Jun 15 2018
CROSSREFS
KEYWORD
nonn
AUTHOR
EXTENSIONS
a(6)-a(34) from Donovan Johnson, Nov 13 2010
STATUS
approved