Any number, of yuor choice can be next. It is always possible to find a position-to-value rule in the form of a polynomial of order 5 that will fit the above values and any other value.
The polynomial of order 4 that will fit the above values is
Un = (-n4 + 10n3 - 23n2 + 14n + 24)/24 for n = 1, 2, 3, ...
and accordingly, the next number is 6.
1
5.
1+1=2 2+2=4 3+4=7 4+7=11 Your answer is 11
1 , 2, 4, 7, 11 +1,+2,+3,+4
4
4
1/2 then 1/4 1/8 1/16 1/32
0.5
22
6 6 2 2 4
4646564
its +2, +2, -1... so the next is 10