[math-fun] Coordination sequence for 3.3.4.3.4 lattice

There's a pretty Archimedian tiling with vertex figure 3.3.4.3.4 whose vertex coordination sequence has at least one of the following two properties: 1. It is not in OEIS. 2. I have miscalculated it. (This seems likely, since my "calculation" consisted of scrawling a portion of the tiling and then drawing blobs on vertices while I counted them by hand.) I have the first five elements as 1, 5, 11, 16, 22; OEIS doesn't find anything with those elements. I'll submit this if somebody else can verify my entries.