122224

Appears in sequences

• Geometric mean of digits = 2 and digits are in nondecreasing order.at n=20A069512
• a(n) = 5*a(n-1) + A047201(n), a(1) = 1. A047201 = numbers not divisible by 5: (1, 2, 3, 4, 6, 7, 8, 9, 11, ...).at n=7A141845
• G.f. A(x) satisfies A(x) = 1 / ((1 - x) * (1 - x * A(x^4))).at n=28A367692