Q: Which number should come next in the series 25-49-81-121-169?

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the answer will be 21

Quotation marks should come before and after a symbol.

yes

336 t(n) = (4n5 - 50n4 + 260n3 - 640n2 +756n - 210)/30 for n = 1, 2, 3, ...

by having any number and it will come up in any number because of letters

Related questions

The next number is -21

the answer will be 21

10

This is the series of square numbers, (16= 4*4). The next number is 5*5=25.

21

21

21.

21

The next number is 25 but there are the sequence is infinite so there can be no end to the sequence.

12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50

it should already have come out

There is no specific number. It all depends on what shows are good. Should a bunch of new series come out on year that nobody likes, many new series will come out to follow. That year, there would be many TV series. However, a year that has many great TV series that everybody watches would have little new series, thus having less TV series that year.