Stupidly still pays for sequences of numbers (9)

I believe the answer is:

playlists

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'sequences of numbers' is the definition.
The definition suggests a plural noun which matches the answer.

'stupidly still pays' is the wordplay.
'stupidly' indicates anagramming the letters (a stupid ordering of the letters).
'still'+'pays'='stillpays'
'stillpays' with letters rearranged gives 'PLAYLISTS'.

'for' is the link.

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