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.

A244754 a(n) = Sum_{k=0..n} C(n,k) * (1 + 2^k)^(n-k).

Table of values

n a(n)
0 1
1 3
2 11
3 51
4 311
5 2583
6 30011
7 495771
8 11740271
9 399511023
10 19531952051
11 1369534859091
12 137461591250951
13 19708614005005383
14 4029559971566918891
15 1172950335844577723211
16 485515762655939377001951
17 285459356061242116657495263
18 238215406681004045293498284131

List of values

[1, 3, 11, 51, 311, 2583, 30011, 495771, 11740271, 399511023, 19531952051, 1369534859091, 137461591250951, 19708614005005383, 4029559971566918891, 1172950335844577723211, 485515762655939377001951, 285459356061242116657495263, 238215406681004045293498284131]