Composition of Triads

Actually, any three numbers can be seen as a triad in numerology.

Generally, however, the three numbers have a recognizable pattern. Sequential numbering is one, as you mentioned, like 4−5−6. There are also triads composed of numbers with a specific multiple, like 3−6−9 and 12−24−36, and triads composed of doubling numbers, like 2−4−8.

Triads in numerology generally are only a point of interesting observation. Much todo can be made of a triad. But number energy interpretations aren't modified (other than as an interesting point) simply because a number is a triad or an element of a triad.