A130687 - cp's OEIS frontend

A130687 Numbers n such that a_1! + a_2! + ... + a_m! is a square number, where a_1a_2...a_m is the decimal expansion of n.

n	a(n)
1	1
2	14
3	15
4	17
5	22
6	40
7	41
8	45
9	50
10	51
11	54
12	70
13	71
14	102
15	112
16	120
17	121
18	123
19	132
20	144
21	156
22	165
23	200
24	201
25	203
26	210
27	211
28	213
29	230
30	231
31	302
32	312
33	320
34	321
35	334
36	343
37	404
38	414
39	433
40	440
41	441
42	457
43	475
44	506
45	516
46	547
47	560
48	561
49	574
50	605
51	615

[1, 14, 15, 17, 22, 40, 41, 45, 50, 51, 54, 70, 71, 102, 112, 120, 121, 123, 132, 144, 156, 165, 200, 201, 203, 210, 211, 213, 230, 231, 302, 312, 320, 321, 334, 343, 404, 414, 433, 440, 441, 457, 475, 506, 516, 547, 560, 561, 574, 605, 615]

cp's OEIS Frontend

A130687 Numbers n such that a_1! + a_2! + ... + a_m! is a square number, where a_1a_2...a_m is the decimal expansion of n.

Table of values

List of values

n	a(n)
1	1
2	14
3	15
4	17
5	22
6	40
7	41
8	45
9	50
10	51
11	54
12	70
13	71
14	102
15	112
16	120
17	121
18	123
19	132
20	144
21	156
22	165
23	200
24	201
25	203
26	210
27	211
28	213
29	230
30	231
31	302
32	312
33	320
34	321
35	334
36	343
37	404
38	414
39	433
40	440
41	441
42	457
43	475
44	506
45	516
46	547
47	560
48	561
49	574
50	605
51	615

n	a(n)
1	1
2	14
3	15
4	17
5	22
6	40
7	41
8	45
9	50
10	51
11	54
12	70
13	71
14	102
15	112
16	120
17	121
18	123
19	132
20	144
21	156
22	165
23	200
24	201
25	203
26	210
27	211
28	213
29	230
30	231
31	302
32	312
33	320
34	321
35	334
36	343
37	404
38	414
39	433
40	440
41	441
42	457
43	475
44	506
45	516
46	547
47	560
48	561
49	574
50	605
51	615

n	a(n)
1	1
2	14
3	15
4	17
5	22
6	40
7	41
8	45
9	50
10	51
11	54
12	70
13	71
14	102
15	112
16	120
17	121
18	123
19	132
20	144
21	156
22	165
23	200
24	201
25	203
26	210
27	211
28	213
29	230
30	231
31	302
32	312
33	320
34	321
35	334
36	343
37	404
38	414
39	433
40	440
41	441
42	457
43	475
44	506
45	516
46	547
47	560
48	561
49	574
50	605
51	615