cp's OEIS Frontend

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.

A212476 Number of 0..3 arrays of length 2*n+4 with sum no more than 3*n in any length 2n subsequence (=50% duty cycle).

Table of values

n a(n)
1 707
2 16649
3 321320
4 5622580
5 95010466
6 1578372444
7 25966120647
8 424537002094
9 6911873593516
10 112193588288892
11 1817051683302947
12 29377851622547612
13 474335448720482746
14 7650319463541214660
15 123278749437509026298

List of values

[707, 16649, 321320, 5622580, 95010466, 1578372444, 25966120647, 424537002094, 6911873593516, 112193588288892, 1817051683302947, 29377851622547612, 474335448720482746, 7650319463541214660, 123278749437509026298]