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.

A276180 n^2*a(n) = 2*(14*n^2 - 16*n + 7)*a(n-1) - 20*(24*n^2 - 56*n + 41)*a(n-2) + 80*(64*n^2 - 224*n + 221)*a(n-3) - 1600*(24*n^2 - 112*n + 139)*a(n-4) + 6400*(28*n^2 - 164*n + 245)*a(n-5) - 128000*(2*n-7)^2*a(n-6) for n>6, a(0)=1, a(1)=10, a(2)=30, a(3)=-300, a(4)=-3850, a(5)=-13940, a(6) = 56300.

Table of values

n a(n)
0 1
1 10
2 30
3 -300
4 -3850
5 -13940
6 56300
7 543400
8 -2332250
9 -29758500
10 340835780
11 7316239000
12 40381709500
13 -199606565000
14 -4494519345000
15 -25429880846000
16 18331676223750
17 848074482677500
18 714616060812500
19 -19019302889325000
20 506727569992188500

List of values

[1, 10, 30, -300, -3850, -13940, 56300, 543400, -2332250, -29758500, 340835780, 7316239000, 40381709500, -199606565000, -4494519345000, -25429880846000, 18331676223750, 848074482677500, 714616060812500, -19019302889325000, 506727569992188500]

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

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