Up to the 10, (in English) they are in alphabetical order - Eight, Five, Four, ...
For English speaking people, the numbers are in alphabetical order.
10
This is the sequence of numbers from 1 to 10, which, when written as English words, they would be in alphabetical order.
5
Dodging numbers may be missing numbers in a sequence. For example, the underscore in the following sequence represents such a number: 2, 4, _ , 8, 10.
8 5 4 9 1 7 6 10 3 2 0 This sequence is special because the numbers are in alphabetical order. The Fibonacci sequence is very special and the triangular sequence.
10
5+5 = 10 10+5 = 15 15-5 = 15 10+5 = 15
6
This sequence of numbers is in alphabetical number when written in their full form, eg; "eight".
I'm guessing your sequence is 1, 3, 6, 10, 15, ... In which case it continues: 21, 28, 36, 45, 55, 66, ... (These are the triangular numbers.)
The following is one of [10 quadrillion] 16 digit sequence.6352719155731945