Digit Product Sequences can be read here https://facstaff.bloomu.edu/ploomis/sequences.html
In Summary, given a starting positive integer number, every succeeding number is previous number + product of non zeros digits of previous number.
Hence, if starting number is 1, then Digit Product Sequences will be –
1, 2, 4, 8, 16, 22, 26, 38, 62, 74, 102, 104, 108, 116, 122, 126, 138, 162, 174, 202, 206, 218, 234, 258, 338, 410, 414, 430, 442, 474, 586, 826, 922, 958, 1318, 1342, 1366, …
Challenge before you is following –
A1 should have a starting number
Write a formula in A2 which can be dragged down to generate above number sequence.
Note – You may wish to post the answer to this in comments.