There is also an interesting passage in SN 22.81 - Parileyya.
"Here, bhikkhus, the uninstructed worldling .....regards form as self. That regarding, bhikkhus, is a formation. That formation - what is its source, what is its origin, from what is it born and produced? When the uninstructed worldling is contacted by a feeling born of ignorance-contact, craving arises: thence that formation is born.
Thus, bhikkhus, that formation is impermanent, conditioned, dependently arisen; that craving is impermanent, conditioned, dependently arisen; that feeling is impermanent, conditioned, dependently arisen; that contact is impermanent, conditioned, dependently arisen; that ignorance is impermanent, conditioned, dependently arisen.
When one knows and sees this, bhikkhus, the immediate destruction of the taints occurs."
1. Although 'regarding' is used in this passage, many views are described later using exactly the same words.
2. Later, it says: "... that eternalist view is a formation ...", so we can say that views are formations (sankharas).
3. Views are not normally seen as impermanent - quite the opposite! Here it means: capable of ceasing, vanishing.
4. The view, and the craving, feeling, contact and ignorance, are all said to be impermanent - capable of ceasing.
5. All these are also said to be 'conditioned', Bhikkhu Bodhis term for whatever is made by the constructive activity which is a sankhara.
6. All these are also said to be 'dependently arisen', part of the chain of items in Dependent Origination.
7. The chain seems to be: six-bases, contact, feeling, craving, clinging?
View-clinging is one of four kinds of clinging.
8. The constructive activity and what it makes are, I think, just two aspects of the same thing. So do sankharas depend on sankharas? Yes, some things can only be made if something else is already being made.
9. In the later (abhidhamma) list of fifty items in the sankhara khandha,
contact, volition and views are included, feeling, craving and clinging are not found, (greed, lobha, is included and may substitute for craving and clinging).