74828

Appears in sequences

• Expansion of f(f(x)), where f = x + x^2 + x^4 + x^8 + x^16 + ...at n=23A007801
• Transform of the finite sequence (1, 0, -1) by the T_{0,1} transformation (see link).at n=13A159340
• Irregular triangle read by rows: T(n,k) is the number of binary pattern classes in the (9,n)-rectangular grid with k '1's and (9n-k) '0's: two patterns are in same class if one of them can be obtained by a reflection or 180-degree rotation of the other.at n=36A228168
• Padovan like sequence: a(n) = a(n-2) + a(n-3) for n>3, a(1)=2, a(2)=2, a(3)=0.at n=40A276275