Life Sequence was created in 1988.
In astronomy the term main sequence is understood to apply to stellar evolution; since black holes are not themselves considered stars so much as "stellar remnants" they would not fall on this sequence. It would be appropriate to say they are most commonly created at the end of life (once the fuel is exhausted) of a larger star and thus would be more likely to pertain to the most massive stars of the upper main sequence.
On the main sequence.
birth-life-death-more death
Main Sequence.
The Thorns of Life was created in 2008.
Party Sequence was created in 1969.
Starlight Sequence was created in 1984.
The Blood Opera Sequence was created in 1994.
The Dark Is Rising Sequence was created in 1984.
Off the Main Sequence was created in 2005-11.
Polymorphic simple sequence repeats database was created in 2010.
The Human Centipede - First Sequence - was created on 2010-04-30.
Understand that the Main Sequence is not a place or a category that a star belongs to all its life. A star's destiny is controlled by its size and this determines how much time it spends on the Main Sequence.
Fibbonaci who else
After the main sequence, a star becomes a red giant.
Main sequence
Life?