The next number in the sequence 3-15-6-30-21 is -207.
24 The series formula is A(n) = n2 - 1 12 - 1 = 0 22 - 1 = 3 32 - 1 = 8 42 - 1= 15 52 - 1 = 24
0 9-3=6 6-3=3 3-3=0
The next number is -21
21: (3)+3=(6)+4=(10)+5=(15)+6=(21)
The next number in the sequence is 48.
18
28
The pattern in the sequence 0, 3, 9, 21 involves adding consecutive odd numbers. Starting with 0, then adding 1+2, 3+6, and 9+12 gives you the next number in the sequence. Therefore, the next number would be 21 + 15 = 36.
The next number in the sequence 3-15-6-30-21 is -207.
It appears that the sequence is: {| |- | 0 1 3 7 15 31 63 127 255 511 1023 2047 4095 8191 |}
idk but i was going to ask that one. The next number in ther sequence is.... 45 ! The difference between each number increases by three each time (3-0=3, 9-3=6, 18-9=9, 30-18=12 therefore 45-30=15) !
24 The series formula is A(n) = n2 - 1 12 - 1 = 0 22 - 1 = 3 32 - 1 = 8 42 - 1= 15 52 - 1 = 24
0 9-3=6 6-3=3 3-3=0
The next number is 4, followed by -2
The next number is -21
21: (3)+3=(6)+4=(10)+5=(15)+6=(21)