From 05ebdd213d5968b9f0eeaa01e4f9aac33ef86c7c Mon Sep 17 00:00:00 2001
From: Ferruccio Guidi <ferruccio.guidi@unibo.it>
Date: Fri, 23 Jan 2009 11:25:44 +0000
Subject: [PATCH] OEIS sequence identifier found for P(n)

---
 helm/software/matita/contribs/character/classes/defs.ma | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/helm/software/matita/contribs/character/classes/defs.ma b/helm/software/matita/contribs/character/classes/defs.ma
index e31c9a93c..d5986fe77 100644
--- a/helm/software/matita/contribs/character/classes/defs.ma
+++ b/helm/software/matita/contribs/character/classes/defs.ma
@@ -14,6 +14,10 @@
 
 include "preamble.ma".
 
+(* NOTE: OEIS sequence identifiers 
+   P(n): A016777 "3n+1"
+*)         
+
 inductive P: nat \to Prop \def
    | p1: P 1
    | p2: \forall i,j. T i \to P j \to P (i + j)
-- 
2.39.2