A335159 a(n) = nim-product of 2^2 and 2^n.

4, 8, 6, 11, 64, 128, 96, 176, 1024, 2048, 1536, 2816, 16384, 32768, 24576, 45056, 262144, 524288, 393216, 720896, 4194304, 8388608, 6291456, 11534336, 67108864, 134217728, 100663296, 184549376, 1073741824, 2147483648, 1610612736, 2952790016, 17179869184

Offset: 0

Author

N. J. A. Sloane, Jun 08 2020

Keywords

• nonn

Links

• Rémy Sigrist, Table of n, a(n) for n = 0..1000
• J. H. Conway, Integral lexicographic codes, Discrete Mathematics 83.2-3 (1990): 219-235. See Table 4.

Crossrefs

Row 2 of array in A223541.

Formula

Conjectures from Colin Barker, Jun 11 2020: (Start)

G.f.: (4 + 8*x + 6*x^2 + 11*x^3) / ((1 - 2*x)*(1 + 2*x)*(1 + 4*x^2)).

a(n) = 16*a(n-4) for n>3.

(End)