What number should appear next in this sequence - 1, 5, 12, 34, 92, 252, ?

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What number should appear next in this sequence - 1, 5, 12, 34, 92, 252, ?

posted Jul 8, 2019 by Pushpak Chauhan

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2 Answers (Check Answer ▼)

688

1
5
12=2*(1+5)
34=2*(5+12)
92=2*(12+34)
252=2*(34+92)
688=2*(92+252)

answer Jul 8, 2019 by Hanifa Mammadov

688
(252+92)=344*2=688

answer Jul 9, 2019 by R P Pillai

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