A259675 - cp's OEIS frontend

A259675 Numbers n with the property that it is possible to write the base 2 expansion of n as concat(a_2,b_2), with a_2>0 and b_2>0 such that, converting a_2 and b_2 to base 10 as a and b, we have a’ * b’ = n, where a’ and b’ are the arithmetic derivatives of a and b.

n	a(n)
1	1344
2	1456
3	2352
4	5120
5	5376
6	6000
7	9680
8	25600
9	36672
10	38220
11	73536
12	76752
13	77824
14	86592
15	96250
16	110160
17	114688
18	122360
19	141056
20	161544
21	249600
22	314352
23	382976
24	471040
25	486400
26	553056
27	822224
28	1411536
29	1525056
30	1570800
31	1612288
32	1720320
33	1886720
34	2143220
35	2359296

[1344, 1456, 2352, 5120, 5376, 6000, 9680, 25600, 36672, 38220, 73536, 76752, 77824, 86592, 96250, 110160, 114688, 122360, 141056, 161544, 249600, 314352, 382976, 471040, 486400, 553056, 822224, 1411536, 1525056, 1570800, 1612288, 1720320, 1886720, 2143220, 2359296]

cp's OEIS Frontend

A259675 Numbers n with the property that it is possible to write the base 2 expansion of n as concat(a_2,b_2), with a_2>0 and b_2>0 such that, converting a_2 and b_2 to base 10 as a and b, we have a’ * b’ = n, where a’ and b’ are the arithmetic derivatives of a and b.

Table of values

List of values