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eban n.  and  tau n.

First numbers that belong to both sets:

2, 36, 40, 56, 60, 2000, 2004, 2056, 4032, 4044, 4050, 4056, 6000, 6036, 6056, 30000, 30036, 30060, 32004, 32052, 32056, 34000, 34044, 36000, 36056, 40032, 40064, 42000, 44052, 44056, 46000, 46044, 50056, 52044, 54000, 54036, 56000, 60000, 60032, 60036, 60056, 62000, 62004, 62052, 62056, 64000, 64032, 64064, 66000, 66036, 66060, 2000004, 2000056, 2004000, 2006000, 2030000, 2032000, 2032032, 2032056, 2034000, 2034036, 2034056, 2036004, 2036052, 2036064, 2040036, 2040056, 2042000, 2042004, 2044032, 2044044, 2046036, 2046056, 2050044, 2054000, 2054004, 2054056, 2056064, 2060052, 2060064, 2062000, 2064000, 2064060, 2066000, 2066004, 2066052, 4000032, 4000044, 4002036, 4002056, 4004004, 4004064, 4006000, 4030000, 4032000, 4032036, 4034000, 4036032, 4040004, 4040052, 4040064, 4042000, 4042044, 4044000, 4050000, 4050036, 4052056, 4052064, 4054000, 4054044, 4060032, 4060044, 4062000, 4062056, 4062060, 4064004, 4066000, 4066056, 6000064, 6002000, 6002004, 6030000, 6032000, 6032052, 6034000, 6036000, 6036036, 6040032, 6040044, 6042056, 6044032, 6044064, 6046000, 6052032, 6052044, 6054000, 6056004, 6056052, 6056064, 6060000, 6060056, 6062000, 6062004, 6064000, 6064032, 6064056, 6066000, 30000000, 30000060, 30002000, 30002004, 30002052, 30006000, 30006036, 30030000, 30032000, 30032004, 30034000, 30036000, 30036056, 30036060, 30040032, 30042000, 30044032, 30044052, 30044064, 30046000, 30050004, 30050056, 30054000, 30054036, 30054060, 30056056, 30056064, 30060000, 30060036, 30062000, 30062052, 30064000, 30064032, 30064044, 30066000, 32000004, 32002000, 32002056, 32004000, 32004036, 32006000, 32006004, 32006052, 32030000, 32030004, 32030056, 32032032, 32034060, 32036032, 32036064, 32040064, 32042000, 32042004, 32044044, 32046000, 32050044, 32052000, 32052060, 32054004, 32054052, 32056032, 32056044, 32060004, 32060052, 32060064, 32064000, 32064036, 32066000, 32066052, 34000064, 34002000, 34002036, 34004004, 34004052, 34004064, 34006044, 34030000, 34032000, 34032036, 34032056, 34032060, 34034004, 34040052, 34042000, 34044000, 34044032, 34046000, 34046004, 34050000, 34050036, 34050056, 34052032, 34052056, 34052064, 34054000, 34056064, 34064000, 34066000, 34066044, 36000036, 36000056, 36002000, 36002052, 36006056, 36030000, 36032000, 36032004, 36034000, 36034056, 36040044, 36040064, 36042000, 36042056, 36044064, 36046000, 36046044, 36050004, 36052056, 36054000, 36054036, 36054056, 36056052, 36056064, 36060000, 36060032, 36060056, 36064032, 36064044, 36066000, 36066036, 40000000, 40000032, 40002056.

Some larger examples :