daily riddle #27

in #riddle6 years ago

New week, new riddle. The fomular behind the following number row is well known. But I changed the beginning a little bit, so it's slightly diffucult. But overall it should be pretty easy.

3 | 4 | 7 | 11 | 18 | ?

Coin Marketplace

STEEM 0.17
TRX 0.13
JST 0.027
BTC 60788.02
ETH 2632.71
USDT 1.00
SBD 2.63