Question

1, 3, 7, 25, 103, ? find next no​

Answer 1

The difference of number is sequence of 2, 4 ,18 ,78

there difference terms are

0,2,14,60

Each term differs from power of 2 and add by there differences by

2power 1+0,2 power 1+2,2power 4,2+2 power 6+14,2power 7+14

so the answer is

2 power 7+14 +103=245