A121018 Value of n written in Braille, seen as 3 X 2 bit-code: 1 for a raised dot and 0 for an empty dot position.

28, 32, 40, 48, 52, 36, 56, 60, 44, 24, 2076, 2080, 2088, 2096, 2100, 2084, 2104, 2108, 2092, 2072, 2588, 2592, 2600, 2608, 2612, 2596, 2616, 2620, 2604, 2584, 3100, 3104, 3112, 3120, 3124, 3108, 3128, 3132, 3116, 3096, 3356, 3360, 3368, 3376, 3380, 3364

Offset: 0

Author

Reinhard Zumkeller, Jul 23 2006

Keywords

• nonn
• base

Comments

A000120(a(n)) = A079399(n).

Examples

			...... +-----+
n=0: . | _ . | -> (01)(11)(00)
...... | . . | .. -> 011100[bin] = 28 = a(0)
...... | _ _ |
...... +-----+
n=1: . | . _ | -> (10)(00)(00)
...... | _ _ | .. -> 100000[bin] = 32 = a(1)
...... | _ _ |
...... +-----+
n=2: . | . _ | -> (10)(10)(00)
...... | . _ | .. -> 101000[bin] = 40 = a(2)
...... | _ _ |
...... +-----+
n=3: . | . . | -> (11)(00)(00)
...... | _ _ | .. -> 110000[bin] = 48 = a(3)
...... | _ _ |
...... +-----+
n=4: . | . . | -> (11)(01)(00)
...... | _ . | .. -> 110100[bin] = 52 = a(4)
...... | _ _ |
...... +-----+
n=5: . | . _ | -> (10)(01)(00)
...... | _ . |.. -> 100100[bin] = 36 = a(5)
...... | _ _ |
...... +-----+
n=6: . | . . | -> (11)(10)(00)
...... | . _ | .. -> 111000[bin] = 56 = a(6)
...... | _ _ |
...... +-----+
n=7: . | . . | -> (11)(11)(00)
...... | . . | .. -> 111100[bin] = 60 = a(7)
...... | _ _ |
...... +-----+
n=8: . | . _ | -> (10)(11)(00)
...... | . . | .. -> 101100[bin] = 44 = a(8)
...... | _ _ |
...... +-----+
n=9: . | _ . | -> (01)(10)(00)
...... | . _ | .. -> 011000[bin] = 24 = a(9)
...... | _ _ |
...... +-----+.
		

Links

• Wikipedia, Braille

Crossrefs

Cf. A121019.

Programs

Mathematica

a[0]=28;a[1]= 32;a[2]= 40;a[3]= 48;a[4]= 52;a[5]= 36;a[6]= 56;a[7]= 60;a[8]= 44;a[9]= 24;a[n_]:=a[Floor[n/10]]*64+a[Mod[n,10]];Table[a[n],{n,0,45}] (* James C. McMahon, Oct 11 2024 *)

Formula

a(n) = a(floor(n/10))*64 + a(n mod 10) for n>9.