As a challenge activity, you might consider sequences generated by explicit equation containing multiple terms of the form cn. For example, try applying triangular differences for the sequences generated by n2, n, and n-3n. Do you notice any patterns? What about 2n2 +4n or 5n2 +2n-52 This exercise is most efficiently investigated using a computer spreadsheet program. As a challenge activity, you might consider sequences generated by explicit equation containing multiple terms of the form cn. For example, try applying triangular differences for the sequences generated by n2, n, and n-3n. Do you notice any patterns? What about 2n2 +4n or 5n2 +2n-52 This exercise is most efficiently investigated using a computer spreadsheet program