Doubling (AABBCC)
Make it instantly recognisable
73 - 77 4444 88
?13,751
?11,001
8888880 - 880
?17,12,500
?13,70,000
99 33 00 22 - 39
?8,125
?6,500
99 33 00 22 - 43
?8,125
?6,500
99 33 00 22 - 96
?8,125
?6,500
99 33 00 99 - 61
?8,125
?6,500
99 55 00 22 - 87
?8,125
?6,500
99 55 00 22 - 94
?8,125
?6,500
99 55 00 33 - 08
?8,125
?6,500
99 55 22 55 - 94
?8,125
?6,500
73 - 77 11 55 11
?13,751
?11,001
73 - 77 22 11 22
?13,751
?11,001
73 - 77 22 33 22
?16,875
?13,500
73 - 77 22 44 22
?13,751
?11,001
73 - 77 22 55 22
?13,751
?11,001
73 - 77 22 66 22
?13,751
?11,001
73 - 77 22 99 22
?16,875
?13,500
73 - 77 33 22 33
?16,875
?13,500
73 - 77 33 55 33
?26,875
?21,500
73 - 77 33 66 33
?26,875
?21,500
73 - 77 33 88 33
?13,751
?11,001
73 - 77 33 99 33
?26,875
?21,500
73 - 77 44 00 44
?13,751
?11,001
73 - 77 44 11 44
?13,751
?11,001
Doubling (AABBCC) number pattern