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There are many posible answers. One of them is
Un = (-n4 + 13n3 - 53n2 + 95n - 36)/6 for n = 1, 2, 3, ...
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∙ 11y ago
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What is the nth term for sequence 3 12 27 64 75 108?
There is no pattern
What number best completes the sequence 2 9 3 14 4 19?
13 20 12
What best answer completes this sequence 2 9 5 13 10 19 17?
Pattern: +7,-4,+8,-3,+9,-2... Pattern continuation: +10,-1,+11,*0,+12,+1 17+10=27
What is the next number in sequence 4 12 15 45 48?
The sequence reflects a pattern of multiplying by 3, then adding 3, to each successive value. The next value would be 144. Explanation: 4x3=12, 12+3=15, 15x3=45, 45+3=48, 48x3=144
What is next in the pattern 4 12 6 12 36 18 36?
This sequence appears to be a repeated pattern of: multiply by 3, divide by 2, multiply by 24 * 3 = 1212 / 2 = 66 * 2 = 12Now repeat the pattern...12 * 3 = 3636 / 2 = 1818 * 2 = 26Now repeat the pattern to get new terms36 * 3 = 108108 / 2 = 5454 * 3 = 162
What is the following pattern in the sequence 3 -6 12 4 20?
3, -6, 12, 4, 20, 13, 27, 21, 33 -9, +18, -8, +16, -7, +14, -6, +12
What are the next two numbers in the pattern 1 3 7 13 19?
21 and 13. The pattern is t(n) = (-n4 + 10n3 - 23n2 + 38n - 12)/12
What is the fraction form of 3 is to 12 is to 4 in ratio?
3/19 : 12/19 : 4/19
What is the next number in this pattern 3 4 7 8 11?
The pattern seems to be +1 +3 +1 +3 (3+1 = 4, 4+3 = 7, 7+1 = 8, etc...) So next in the sequence would be 12.
What is the pattern rule for -3 and 6 and -9 and 12 and -15?
Each number is decreasing by 3. The next numbers in the sequence would be -18, -21, -24, -27, -30.
What is algebraic expression for this pattern 3 4 7 12 19?
t(n) = n2 - 2n + 4
What is the pattern sequence 4 12 14 42?
It looks like two different operations in a pattern. Taking 4 multiply by 3 = 12. Taking 12 add 2 = 14. Taking 14 multiply by 3= 42 ........ so next is ..... taking 42 add 2 = 44.
