Doubling (AABBCC)

Make it instantly recognisable

left
993366 9775
?15,625
?12,500
Sum: 64
Total: 1
left
777 99 333 97
?12,501
?10,001
Sum: 64
Total: 1
left
91 9999 7731
?15,625
?12,500
Sum: 64
Total: 1
left
96366 99331
?18,625
?14,900
Sum: 55
Total: 1
left
80 8811 7700
?12,501
?10,001
Sum: 40
Total: 4
left
6292 445566
?26,875
?21,500
Sum: 49
Total: 4
left
6292 556677
?26,875
?21,500
Sum: 55
Total: 1
left
7009 113399
?18,625
?14,900
Sum: 42
Total: 6
left
8017 334455
?26,875
?21,500
Sum: 40
Total: 4
left
8697 336699
?12,501
?10,001
Sum: 66
Total: 3
left
905 111 55 11
?18,625
?14,900
Sum: 29
Total: 2
left
7699 1111 56
?14,376
?11,501
Sum: 46
Total: 1
left
7699 5555 13
?14,376
?11,501
Sum: 55
Total: 1
left
7699 5555 36
?14,376
?11,501
Sum: 60
Total: 6
left
776600 1366
?10,001
?8,001
Sum: 42
Total: 6
left
91 996611 90
?15,625
?12,500
Sum: 51
Total: 6
left
96600 99160
?12,501
?10,001
Sum: 46
Total: 1
left
96366 55771
?18,625
?14,900
Sum: 55
Total: 1
left
95711 99117
?18,625
?14,900
Sum: 50
Total: 5
left
73577 11559
?13,751
?11,001
Sum: 50
Total: 5
left
77799 55173
?13,751
?11,001
Sum: 60
Total: 6
left
9669 966 743
?4,625
?3,700
Sum: 65
Total: 2
left
775500 4666
?7,499
?5,999
Sum: 46
Total: 1
left
73 882233 70
?3,125
?2,500
Sum: 43
Total: 7

Doubling (AABBCC) number pattern