Complete the following sequence:
34, 77, 154, 605, 1111, ?
This question actually came from a brain teasers calendar, so I can’t take credit. It’s listed as a 7/10 difficulty, but if you’re good with sequences it’s not hard.
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Greg from EmergingSoft wins with the first solution, though granted, he received a verbal notification of the new post. Dusty in second, who had the unfortunate disadvantage of not using RSS technology. Random person from MessageLabs in 3rd.
I tend to block comment posts that contain the solution, but feel free to submit that way. I just don’t want the solution to be too available before I’ve had the post out there a while.
2222
4444, 8888, 17776, 85547, 160105, 661166, 1322332, 3654563, 7309126, 13528163, 49710694, 99312488, 187733887, 976071668, 1842242347, 9274664828, 17559329557, 93151725128, 175304440267, 937348843838, 1775697687577
22422
2222 ??????
2222; t(n+1)=t(n)+reverse{t(n)}
Try this – 32, 55, 165, 1848, ___
35772
t(n+1) = t(n) + reverse(t(n))*n with t(n) = 32 when n = 1