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A045230
Numbers whose base-5 representation contains exactly three 1's and one 2.
0
157, 161, 181, 281, 657, 661, 681, 757, 761, 777, 785, 788, 789, 792, 797, 801, 805, 808, 809, 816, 821, 832, 836, 857, 861, 881, 901, 905, 908, 909, 916, 921, 956, 981, 1032, 1036, 1056, 1157, 1161, 1181, 1281, 1381, 1401
OFFSET
1,1
CROSSREFS
Cf. A007091.
Sequence in context: A028675 A248504 A090851 * A180551 A096704 A178091
KEYWORD
nonn,base
STATUS
approved