0,1

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

Wikipedia, Braille

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

...... +-----+

n=0: . | _ . | -> (010)(110)

...... | . . | .. -> 010110[bin] = 22 = a(0)

...... | _ _ |

...... +-----+

n=1: . | . _ | -> (100)(000)

...... | _ _ | .. -> 100000[bin] = 32 = a(1)

...... | _ _ |

...... +-----+

n=2: . | . _ | -> (110)(000)

...... | . _ | .. -> 110000[bin] = 48 = a(2)

...... | _ _ |

...... +-----+

n=3: . | . . | -> (100)(100)

...... | _ _ | .. -> 100100[bin] = 36 = a(3)

...... | _ _ |

...... +-----+

n=4: . | . . | -> (100)(110)

...... | _ . | .. -> 100110[bin] = 38 = a(4)

...... | _ _ |

...... +-----+

n=5: . | . _ | -> (100)(010)

...... | _ . | .. -> 100100[bin] = 34 = a(5)

...... | _ _ |

...... +-----+

n=6: . | . . | -> (110)(100)

...... | . _ | .. -> 111000[bin] = 52 = a(6)

...... | _ _ |

...... +-----+

n=7: . | . . | -> (110)(110)

...... | . . | .. -> 110110[bin] = 54 = a(7)

...... | _ _ |

...... +-----+

n=8: . | . _ | -> (110)(010)

...... | . . | .. -> 101100[bin] = 50 = a(8)

...... | _ _ |

...... +-----+

n=9: . | _ . | -> (010)(100)

...... | . _ | .. -> 010100[bin] = 20 = a(9)

...... | _ _ |

...... +-----+.

Cf. A121018.

Sequence in context: A092215 A106555 A106557 this_sequence A100372 A084996 A096768

Adjacent sequences: A121016 A121017 A121018 this_sequence A121020 A121021 A121022

nonn,base

Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Jul 23 2006