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MULTIPLICATION OF TWO CONSECUTIVE NUMBERS

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If you observe the sum of each digit in the Multiplication of two consectuive no.  pattern repeating:
 2 6 3  2 3 6 2 9 9 




n X n+1
Multiplication of two consectuive no.
Sum of two digits
1X2
2
2
2X3
6
6
3X4
12
3
4X5
20
2
5X6
30
3
6X7
42
6
7X8
56
2
8X9
72
9
9X10
90
9
10X11
110
2
11X12
132
6
12X13
156
3
13X14
182
2
14X15
210
3
15X16
240
6
16X17
272
2
17X18
306
9
18X19
342
9
19X20
380
2
20X21
420
6
21X22
462
3
22X23
506
2
23X24
552
3
24X25
600
6
25X26
650
2
26X27
702
9
27X28
756
9
28X29
812
2
29X30
870
6
30X31
930
3
31X32
992
2
32X33
1056
3
33X34
1122
6
34X35
1190
2
35X36
1260
9
36X37
1332
9
37X38
1406
2
38X39
1482
6
39X40
1560
3
40X41
1640
2
41X42
1722
3
42X43
1806
6
43X44
1892
2
44X45
1980
9
45X46
2070
9
46X47
2162
2
47X48
2256
6
48X49
2352
3
49X50
2450
2
50X51
2550
3
51X52
2652
6
52X53
2756
2
53X54
2862
9
54X55
2970
9
55X56
3080
2
56X57
3192
6
57X58
3306
3
58X59
3422
2
59X60
3540
3
60X61
3660
6
61X62
3782
2
62X63
3906
9
63X64
4032
9
64X65
4160
2
65X66
4290
6
66X67
4422
3
67X68
4556
2
68X69
4692
3
69X70
4830
6
70X71
4970
2
71X72
5112
9
72X73
5256
9
73X74
5402
2
74X75
5550
6
75X76
5700
3
76X77
5852
2
77X78
6006
3
78X79
6162
6
79X80
6320
2
80X81
6480
9
81X82
6642
9
82X83
6806
2
83X84
6972
6
84X85
7140
3
85X86
7310
2
86X87
7482
3
87X88
7656
6
88X89
7832
2
89X90
8010
9
90X91
8190
9
91X92
8372
2
92X93
8556
6
93X94
8742
3
94X95
8930
2
95X96
9120
3
96X97
9312
6
97X98
9506
2
98X99
9702
9
99X100
9900
9
100X101
10100
2


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