A069389 Number of n X 14 binary arrays with a path of adjacent 1's from top row to bottom row.
16383, 263652487, 4012347269577, 57781030561348017, 803089367467759614015
Offset: 1
This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.