The years from now that thr 1819 Balloon Riot occurred (205)

The number of bones in a typical adult human body (206).

ΣΖ (Greek numbering for 207)

The sum of the squares of the first five primes. (2^2+3^2+5^2+7^2+11^2=208)

In senary (base 6), 545 sub 6, or in regular base 10, 209

The area code of San Antonio, TX (210)

Time Warner Cable, Inc., et al., Petitioners v. Sprint Communications Company, L.P., the 211th docketed case of the 2019 SCOTUS session.

Appears to be a patent infringement case over technology, but its also not a very significant case.

The boiling point of water at sea level, in Fahrenheit. (212)

The number of rooted trees with 5 branching nodes and 5 leaves. (214)

Branches from a given node are unordered.

The number of sequences of 4 positive integers whose reciprocals sum to one, counting permutations of a sequence as distinct. (215)

## The Sequences

S1 | S2 | S3 | S4 | Permutations |
---|---|---|---|---|

2 | 3 | 7 | 42 | 24 |

2 | 3 | 8 | 24 | 24 |

2 | 3 | 9 | 18 | 24 |

2 | 3 | 10 | 15 | 24 |

2 | 3 | 12 | 12 | 12 |

2 | 4 | 5 | 20 | 24 |

2 | 4 | 6 | 12 | 24 |

2 | 4 | 8 | 8 | 12 |

2 | 5 | 5 | 10 | 12 |

2 | 6 | 6 | 6 | 4 |

3 | 3 | 4 | 12 | 12 |

3 | 3 | 6 | 6 | 6 |

3 | 4 | 4 | 6 | 12 |

4 | 4 | 4 | 4 | 1 |

TOTAL |
215 |
|||

Also, the number of sequences of 6 integers whose reciprocals sum to four - same OEIS sequence.

## A shorter list here

S1 | S2 | S3 | S4 | S5 | S6 | Permutations |
---|---|---|---|---|---|---|

1 | 1 | 2 | 2 | 2 | 2 | 15 |

1 | 1 | 1 | 2 | 3 | 6 | 120 |

1 | 1 | 1 | 2 | 4 | 4 | 60 |

1 | 1 | 1 | 3 | 3 | 3 | 20 |

TOTAL |
215 |
|||||

The sum of the 3rd set of three consecutive cubes (3^3+4^3+5^3=6^3=216)

The sum of the divisors of 100, including 100 itself.

1+2+4+5+10+20+25+50+100=217