A086070 -id:A086070 - cp's OEIS frontend

A086084 A086070 in binary.

1, 10, 11, 101, 111, 1011, 1101, 1111, 10111, 11011, 11101, 11111, 101111, 110111, 111011, 111101, 111111, 1011111, 1101111, 1110111, 1111011, 1111101, 1111111, 10111111, 11011111, 11101111, 11110111, 11111011, 11111101

Offset: 1

Reinhard Zumkeller, Jul 08 2003

a(n) = A007088(A086070(n)).

Nathaniel Johnston, Table of n, a(n) for n = 1..47 (full sequence)

Cf. A086067, A086068, A086069.

A086069 Records in A086068.

Original entry on oeis.org

0, 1, 10, 20, 102, 103, 203, 1023, 1024, 1034, 2034, 10234, 10235, 10245, 10345, 20345, 102345, 102346, 102356, 102456, 103456, 203456, 1023456, 1023457, 1023467, 1023567, 1024567, 1034567, 2034567, 10234567, 10234568, 10234578, 10234678

Offset: 1

Reinhard Zumkeller, Jul 08 2003

a(n)=A086068(A086070(n)) and A086068(i)A086070(n);

A086066(a(n)) = A086070(n).

Nathaniel Johnston, Table of n, a(n) for n = 1..47 (full sequence)

A086068 Min{k: A086066(k) = n}.

Original entry on oeis.org

0, 1, 10, 2, 20, 12, 102, 3, 30, 13, 103, 23, 203, 123, 1023, 4, 40, 14, 104, 24, 204, 124, 1024, 34, 304, 134, 1034, 234, 2034, 1234, 10234, 5, 50, 15, 105, 25, 205, 125, 1025, 35, 305, 135, 1035, 235, 2035, 1235, 10235, 45, 405, 145, 1045, 245, 2045

Offset: 1

Reinhard Zumkeller, Jul 08 2003

Sequence is finite with last term a(2^10-1)=a(1023)=1023456789; A086067(1023456789)=1111111111.

Nathaniel Johnston, Table of n, a(n) for n = 1..1023 (full sequence)

Cf. A086069, A086070, A086067.

A086068 := proc(n) local b,k,s: s:={}: if(n=1)then return 0: fi: b:=convert(n,base,2): for k from 1 to nops(b) do if(b[k] = 1)then s:=s union {k-1}: fi: od: s:=sort(convert(s,list)): if(s[1]=0)then return s[2]*10^(nops(s)-1)+add(s[j]*10^(nops(s)-j),j=3..nops(s)): else return add(s[j]*10^(nops(s)-j),j=1..nops(s)): fi: end: seq(A086068(n),n=1..53); # Nathaniel Johnston, Jun 01 2011

cp's OEIS Frontend

A086084 A086070 in binary.

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A086069 Records in A086068.

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A086068 Min{k: A086066(k) = n}.

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