A186377 - cp's OEIS frontend

A186377 a(n) equals the least sum of the squares of the coefficients in (1 + 2*x^k + x^p + x^q)^n found at sufficiently large p and q>(n+1)p for some fixed k>0.

n	a(n)
0	1
1	7
2	79
3	1129
4	18559
5	333577
6	6365089
7	126652183
8	2598628543
9	54577439833
10	1167481074529
11	25346459683783
12	557042221952881
13	12368307313680871
14	277027947337574911
15	6251808554314780009
16	142015508983550880703

[1, 7, 79, 1129, 18559, 333577, 6365089, 126652183, 2598628543, 54577439833, 1167481074529, 25346459683783, 557042221952881, 12368307313680871, 277027947337574911, 6251808554314780009, 142015508983550880703]

cp's OEIS Frontend

A186377 a(n) equals the least sum of the squares of the coefficients in (1 + 2*x^k + x^p + x^q)^n found at sufficiently large p and q>(n+1)p for some fixed k>0.

Table of values

List of values