53697

Appears in sequences

• Magnetic Tower of Hanoi, number of moves of disk number k, optimally solving the [RED ; BLUE ; NEUTRAL] or [NEUTRAL ; RED ; BLUE] pre-colored puzzle.at n=11A183111
• Expansion of e.g.f. (1/x) * Series_Reversion( x * (exp(-3*x) - x) ).at n=4A379662