Doubling (AABBCC)
Make it instantly recognisable
99333377 17
?14,626
?11,701
99333377 60
?14,626
?11,701
99333377 96
?14,626
?11,701
993311 06 00
?14,626
?11,701
993311 0666
?14,626
?11,701
993333 9776
?14,626
?11,701
91 44 3333 88
?14,626
?11,701
887711 4000
?13,251
?10,601
993355 1004
?13,251
?10,601
77669933 63
?13,251
?10,601
740 800 8 800
?10,626
?8,501
887711 8282
?10,001
?8,001
887799 0202
?10,001
?8,001
887755 0606
?10,001
?8,001
887755 8282
?10,001
?8,001
887744 3838
?10,001
?8,001
887722 0606
?10,001
?8,001
91 555566 29
?6,625
?5,300
91 555522 89
?4,625
?3,700
91 555566 82
?6,625
?5,300
91 555566 02
?6,625
?5,300
91 555566 32
?6,625
?5,300
91 555566 84
?6,625
?5,300
91 2221 1008
?7,250
?5,800
Doubling (AABBCC) number pattern