No, infinite hash map is still not intelligent, not even by the standards used in computer science. It's not a one-layer network, it's not a network at all. To talk about network nodes form layer 1 would have to connect to multiple nodes in layer 2. The signal would have to be processed somehow. Extremely big one layer neural network could be intelligent for all we know. In theory some consciousness could emerge from sufficiently complex system like that. In a hash map there's no processing though, not matter how big it is. You simply take element A and return element B mapped to it. The operation is always the same. Making this map bigger does not add complexity, knowledge or alter how it's processing inputs. Big hash map is just like a small hash map, only bigger.