A335161 a(n) = nim-product of 2^4 and 2^n.

16, 32, 64, 128, 24, 44, 75, 141, 4096, 8192, 16384, 32768, 6144, 11264, 19200, 36096, 1048576, 2097152, 4194304, 8388608, 1572864, 2883584, 4915200, 9240576, 268435456, 536870912, 1073741824, 2147483648, 402653184, 738197504, 1258291200, 2365587456

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.
• Rémy Sigrist, PARI program for A335161

Crossrefs

Row 4 of array in A223541.

Programs

PARI

See Links section.

Formula

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

G.f.: (16 + 32*x + 64*x^2 + 128*x^3 + 24*x^4 + 44*x^5 + 75*x^6 + 141*x^7) / ((1 - 2*x)*(1 + 2*x)*(1 + 4*x^2)*(1 + 16*x^4)).

a(n) = 256*a(n-8) for n>7.

(End)

Extensions

More terms from Rémy Sigrist, Jun 10 2020