diff --git a/sheets/_axiom/_info.yaml b/sheets/_axiom/_info.yaml
new file mode 100644
index 0000000..e7105aa
--- /dev/null
+++ b/sheets/_axiom/_info.yaml
@@ -0,0 +1 @@
+oeis: "Axiom"
diff --git a/sheets/_gap/_info.yaml b/sheets/_gap/_info.yaml
new file mode 100644
index 0000000..f3e8895
--- /dev/null
+++ b/sheets/_gap/_info.yaml
@@ -0,0 +1 @@
+oeis: "Gap"
diff --git a/sheets/_haskell/_info.yaml b/sheets/_haskell/_info.yaml
index b016816..0e5c942 100644
--- a/sheets/_haskell/_info.yaml
+++ b/sheets/_haskell/_info.yaml
@@ -1 +1,2 @@
 rosetta: Haskell
+oeis: "Haskell"
diff --git a/sheets/_julia/_info.yaml b/sheets/_julia/_info.yaml
index 28cd2da..c106a66 100644
--- a/sheets/_julia/_info.yaml
+++ b/sheets/_julia/_info.yaml
@@ -1 +1,2 @@
 rosetta: "Julia"
+oeis: "Julia"
diff --git a/sheets/_magma/_info.yaml b/sheets/_magma/_info.yaml
new file mode 100644
index 0000000..effa962
--- /dev/null
+++ b/sheets/_magma/_info.yaml
@@ -0,0 +1 @@
+oeis: "Magma"
diff --git a/sheets/_maple/_info.yaml b/sheets/_maple/_info.yaml
new file mode 100644
index 0000000..256d0c9
--- /dev/null
+++ b/sheets/_maple/_info.yaml
@@ -0,0 +1 @@
+oeis: "Maple"
diff --git a/sheets/_mathematica/_info.yaml b/sheets/_mathematica/_info.yaml
index b79da10..64e4dd6 100644
--- a/sheets/_mathematica/_info.yaml
+++ b/sheets/_mathematica/_info.yaml
@@ -1 +1,2 @@
 rosetta: "Mathematica"
+oeis: "Mathematica"
diff --git a/sheets/_pari/_info.yaml b/sheets/_pari/_info.yaml
new file mode 100644
index 0000000..e288a17
--- /dev/null
+++ b/sheets/_pari/_info.yaml
@@ -0,0 +1 @@
+oeis: "Pari"
diff --git a/sheets/_python/_info.yaml b/sheets/_python/_info.yaml
index 4307f18..cc061a2 100644
--- a/sheets/_python/_info.yaml
+++ b/sheets/_python/_info.yaml
@@ -1 +1,2 @@
 rosetta: Python
+oeis: "Python"
diff --git a/sheets/_sage/_info.yaml b/sheets/_sage/_info.yaml
new file mode 100644
index 0000000..48c8320
--- /dev/null
+++ b/sheets/_sage/_info.yaml
@@ -0,0 +1 @@
+oeis: "Sage"