Numbers 7:87-88

87All the oxen for the burnt offering were twelve young bulls, the rams twelve, the male lambs in their first year twelve, with their grain offering, and the kids of the goats as a sin offering twelve.

88And all the oxen for the sacrifice of peace offerings were twenty-four bulls, the rams sixty, the male goats sixty, and the lambs in their first year sixty. This was the dedication offering for the altar after it was anointed.