Trenin made it 3-1 at 17:38 before the Blue Jackets rallied.
"We knew we were playing well after the second period," Danforth said. "We stuck with it. We felt good going into third period. We weren't panicking."
Blankenburg's game-winner was the defenseman's second goal in nine NHL games (seven last season).
"He's a fun player to watch," Gaudreau said. "Great to see a kid come out of college (University of Michigan) and jump right into the NHL. He sees the ice so well. He's physical, smart in his D-zone."
NOTES: After Johansen's goal, the Predators did not have a shot on goal for a span of 9:51, until Josi's shot on the power play at 36 seconds of the second period. … Gaudreau has six points (four goals, two assists) during a four-game point streak. All of his goals have come in the Blue Jackets' three home games.