_:b19839727	<http://purl.org/net/provenance/ns#accessedService>	<https://oeis.org/A002891> .
_:b19839727	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://purl.org/net/provenance/ns#DataAccess> .
_:b19839727	<http://www.w3.org/2007/05/powder-s#describedby>	<http://dev.restore.ovi.cnr.it:8890/about/id/https/oeis.org/A002891> .
_:b19839727	<http://purl.org/net/provenance/ns#performedBy>	<https://oeis.org/A002891#spongerInstance> .
_:b19839727	<http://purl.org/net/provenance/ns#performedAt>	"2025-05-12T07:57:56.624378"^^<http://www.w3.org/2001/XMLSchema#dateTime> .