Calculate the sum of progression whose recurrence relation is .
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- The sum of the progression (pa^2+qa+r))
The sum of the progression (pa^2+qa+r))
Calculation result
The recurrence formula is 2a^2 + 3a + 1
2th number: 15
5th number: 66
The sum of 2th to 5th: 154
Sequence up to 20th: 6, 15, 28, 45, 66, 91, 120, 153, 190, 231, 276, 325, 378, 435, 496, 561, 630, 703, 780, 861
nth | Value |
---|---|
1 | 6 |
2 | 15 |
3 | 28 |
4 | 45 |
5 | 66 |
6 | 91 |
7 | 120 |
8 | 153 |
9 | 190 |
10 | 231 |
11 | 276 |
12 | 325 |
13 | 378 |
14 | 435 |
15 | 496 |
16 | 561 |
17 | 630 |
18 | 703 |
19 | 780 |
20 | 861 |
About the calculation of The sum of the progression (pa^2+qa+r)
Enter the value p, q, and r and the range and click the button "Calculate sum of progression", and the sum of the progression of the specified range and value between the first term to 20th is calculated are displayed.
Please enter up to 15 digits for p, q, and r, and up to 10,000 for nth term.