Getting <int [1]> instead of value in a tibble display

[mickmcq]

In the case where a list contains only an integer, I would like a tibble containing that list to display the integer. For example:

library{tidyverse}
tibble(x=1:3,y=list(3L,2L,1L))

displays

# A tibble: 3 × 2
      x y
  <int> <list>
1     1 <int [1]>
2     2 <int [1]>
3     3 <int [1]>

How can I get it to display the integers instead?

[williaml]

Try:

library(tidyverse)
tibble(x=1:3,y=list(3L,2L,1L)) %>% 
  unnest(cols = c(y))

# A tibble: 3 × 2
      x     y
  <int> <int>
1     1     3
2     2     2
3     3     1