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.

A251183 a(n) = Sum_{k=0..n} binomial(n,k) * (-1)^(n-k) * (2^k + 1)^k.

Table of values

n a(n)
0 1
1 2
2 20
3 662
4 80744
5 38724842
6 75185316860
7 593940189201662
8 19026394370724334544
9 2460515237682283759296722
10 1280059938187721964276628432100
11 2672755638642586172344574379667166822
12 22366135140308331991861876017552822964355384
13 749476887752252949738787898479359344347670538150842

List of values

[1, 2, 20, 662, 80744, 38724842, 75185316860, 593940189201662, 19026394370724334544, 2460515237682283759296722, 1280059938187721964276628432100, 2672755638642586172344574379667166822, 22366135140308331991861876017552822964355384, 749476887752252949738787898479359344347670538150842]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.