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A045244
Numbers whose base-5 representation contains exactly three 1's and no 3's.
1
31, 131, 151, 155, 157, 159, 161, 171, 181, 231, 281, 531, 631, 651, 655, 657, 659, 661, 671, 681, 731, 751, 755, 757, 759, 761, 771, 775, 777, 779, 785, 787, 789, 795, 797, 799, 801, 805, 807, 809, 811, 821, 851, 855, 857, 859
OFFSET
1,1
LINKS
MATHEMATICA
Select[Range[1000], DigitCount[#, 5, 1]==3&&DigitCount[#, 5, 3]==0&] (* Harvey P. Dale, Sep 13 2024 *)
CROSSREFS
Cf. A007091.
Sequence in context: A043355 A023728 A045259 * A045229 A038475 A141931
KEYWORD
nonn,base
STATUS
approved