A177144 A156790(n+1)-4*A156790(n).
1, 4, 9, 19, 38, 69, 134, 289, 520, 1076, 2134, 4098, 8376, 16559, 33020, 66114, 132119, 263585, 525765, 1050309, 2097946, 4199226, 8394235, 16785959
Offset: 0
Keywords
Crossrefs
Cf. A156790.
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.