OID value: 1.2.840.113549.1.9.25.4
OID description:
The sequenceNumber attribute type is intended for PKCS #7 digitally signed data. A signer wishing to associate a sequence number to all signature operations (much like a physical checkbook) may use it as an alternative to the randomNonce attribute.
URL for further info: http://www.ietf.org/rfc/rfc2985.txt
See also the OID Repository website reference for 1.2.840.113549.1.9.25.4