What number(s) come next in this sequence?
61, 52, 63, 94, 46, ….
Reverse the digits, and the sequence is the square numbers
just curious, how did you get -279?
Sounds good to me. I’ll vote for 81 too.
Aaargh. I meant 18. Night all.
18 – three or four days late.
Nathan is correct, it was the square of consecutive numbers starting from 4 with the digits reversed.
Hi Nathan. I’ve just worked out that your comment “Polynomial interpolation” was how you arrived at -279.
Because the difference table doesn’t reduce to a constant, it wasn’t reasonable to use that mthod.