A261995 - cp's OEIS frontend

A261995 The first of four consecutive positive integers the sum of the squares of which is equal to the sum of the squares of twenty-one consecutive positive integers.

n	a(n)
1	42
2	123
3	315
4	1827
5	4659
6	13650
7	34794
8	201114
9	512610
10	1501539
11	3827187
12	22120875
13	56382603
14	165155802
15	420955938
16	2433095298
17	6201573882
18	18165636843
19	46301326155
20	267618362067
21	682116744579
22	1998054897090
23	5092724921274
24	29435586732234
25	75026640329970

[42, 123, 315, 1827, 4659, 13650, 34794, 201114, 512610, 1501539, 3827187, 22120875, 56382603, 165155802, 420955938, 2433095298, 6201573882, 18165636843, 46301326155, 267618362067, 682116744579, 1998054897090, 5092724921274, 29435586732234, 75026640329970]

cp's OEIS Frontend

A261995 The first of four consecutive positive integers the sum of the squares of which is equal to the sum of the squares of twenty-one consecutive positive integers.

Table of values

List of values