A186392 - cp's OEIS frontend

A186392 a(n) equals the least sum of the squares of the coefficients in ((1 + x^k)^3 + x^p)^n found at sufficiently large p for some fixed k>0.

n	a(n)
0	1
1	21
2	1005
3	57117
4	3515661
5	227676321
6	15287457741
7	1054718889525
8	74310865827597
9	5323117605120273
10	386421018984886905
11	28357462296640927845
12	2099749565250183356973
13	156648556486910137353777

[1, 21, 1005, 57117, 3515661, 227676321, 15287457741, 1054718889525, 74310865827597, 5323117605120273, 386421018984886905, 28357462296640927845, 2099749565250183356973, 156648556486910137353777]

cp's OEIS Frontend

A186392 a(n) equals the least sum of the squares of the coefficients in ((1 + x^k)^3 + x^p)^n found at sufficiently large p for some fixed k>0.

Table of values

List of values