Observe the number of columns 3 8 15 24 35 48 By analogy, the smallest integer larger than 2014 is ▁▁▁▁▁▁▁▁ Urgent, by October 12 at the latest!

Observe the number of columns 3 8 15 24 35 48 By analogy, the smallest integer larger than 2014 is ▁▁▁▁▁▁▁▁ Urgent, by October 12 at the latest!

I think it's 1 × 32 × 4, 3 × 54 × 65 × 7. This rule x (x + 2) is larger than 2014, and it should be 44 × 46, equal to 2024

What is the nth number of sequence 0.1.3.6.10.15.21. N

The first number 0 = 0
The second number 1 = 0 + 1
The third number 3 = 0 + 1 + 2
The fourth number 6 = 0 + 1 + 2 + 3
.
The nth number = 0 + 1 + 2 + （N-1）+N=（0+N-1）*N/2=（N-1）*N/2
Oh yeah!

One sequence: 1, 1, 3, 3, 5, 5, 7, 7, 9, 9, 11, 11 What is the nth number?

The nth number is n + [(- 1) + (- 1) to the power of N + 1] / 2

Write 5 / 4, - 29 / 9,83 / 16, - 179 / 25 The general term formula of

(-1)^(n+1) * [(2n-1) + n/(n+1)^2]
Regardless of the symbol, each score can be rewritten as:
1 + 1 / 4, 3 + 2 / 9, 5 + 3 / 16, 7 + 4 / 25. The front is 1, 3, 5, 7, and each molecule is 1, 2, 3, 4. The denominator is (n + 1) ^ 2