Nashville defeated the Chicago Blackhawks 4-3 in overtime on Wednesday.
"In overtime it's usually a 50-50 play," Ekholm said. "We won one last night and lost tonight."
Panarin made it 2-1 at 13:32 with the Blue Jackets' first power-play goal in 26 attempts over the past 12 games. Jenner scored his second of the game for a 3-1 lead.
Arvidsson was at the crease to make it 3-2 at 15:07, and Ekholm scored off a pass from Colton Sissons on a 2-on-1 to make it 3-3.
"We were chasing the game," Laviolette said. "The guys played hard. I don't think it was the prettiest game for us, but they competed, kept working.
"It seemed like it got away from us at the end of the third there, but again, the guys kept pushing and battling."