A186391 - cp's OEIS frontend

A186391 a(n) equals the least sum of the squares of the coefficients in (1 + x^k + x^(2k) + x^p)^n found at sufficiently large p for some fixed k>0.

n	a(n)
0	1
1	4
2	32
3	340
4	4096
5	52704
6	705956
7	9717488
8	136443904
9	1945097296
10	28063032832
11	408836809088
12	6004266204964
13	88779091937488
14	1320294416004736
15	19733192546306640
16	296219343194357760
17	4463668854432401280

[1, 4, 32, 340, 4096, 52704, 705956, 9717488, 136443904, 1945097296, 28063032832, 408836809088, 6004266204964, 88779091937488, 1320294416004736, 19733192546306640, 296219343194357760, 4463668854432401280]

cp's OEIS Frontend

A186391 a(n) equals the least sum of the squares of the coefficients in (1 + x^k + x^(2k) + x^p)^n found at sufficiently large p for some fixed k>0.

Table of values

List of values