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012013014015016017018019023024025026027028029034035036038039045046047048049056057058059067068069078079089123124125126127128129134135136137138139145146147148149156157158159167168169178179189235236238245246248256257258259267268269278289345346356357358359367368369378456457458459467468469478567568569578579589678679689789

Triangular numbers with digits in {0, 3, 7} (up to 1032)

A119066 = nA119065 = T(n)
23
24300
37703
773003
775300700
39439407777333333770
784483730770737700703
1241533997707033303703300
39319302394077300377037737303073770
784062536668773073770307037370707370300003
25690764905223533000770070773300000703773730
1240997802874797770037773370037377077730333003

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