Instead of creating an array of ints in the detail,
create a string:
s@List = '0 1 2 3 4 5 6';
If instead of manually creating the string, you need to use ints like @ptnum, you can first contstruct a loop using itoa() and append() functions to get it to a string.
Then for the blast node use the following(needs those backticks):
`detailsmap("../PW/", "List", 0)`
Middle mousing the parameter box with the detail function will go between what it evaluates to and the expression itself.