A294961 a(n) is the number of E-toothpicks added at n-th stage in the structure of the snowflake cellular automaton of A294960.
2, 6, 6, 6, 6, 18, 6, 18, 18, 18, 6, 18, 30, 18, 30, 54, 18, 42, 30, 42, 18, 42, 42, 54, 66
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.