A043737 Numbers whose number of runs in the base-2 representation is congruent to 4 mod 6.

10, 18, 20, 22, 26, 34, 36, 38, 40, 44, 46, 50, 52, 54, 58, 66, 68, 70, 72, 76, 78, 80, 88, 92, 94, 98, 100, 102, 104, 108, 110, 114, 116, 118, 122, 130, 132, 134, 136, 140, 142, 144, 152, 156, 158, 160, 176, 184, 188, 190, 194, 196

Offset

1,1

Comments

The following numbers are in this sequence but not in A043758: 682, 1194, 1322, 1354, 1362, 1364, 1366, 1370, 1386, 1450, 1706, 2218, 2346, ...

The following numbers are in A043758 but not in this sequence: 5461, 9557, 10581, 10837, 10901, 10917, ... - R. J. Mathar, Feb 16 2013

Links

Table of n, a(n) for n=1..52.

Maple

A043737 := proc(n)
        option remember;
        if n = 1 then
                10;
        else
                for a from procname(n-1)+1 do
                        if modp(A005811(a), 6) = 4 then
                                return a;
                        end if;
                end do:
        end if;
end proc: # R. J. Mathar, Feb 16 2013

Crossrefs

Cf. A005811.

Sequence in context: A043724 A043571 A043732 * A043743 A043750 A043758

Adjacent sequences: A043734 A043735 A043736 * A043738 A043739 A043740

Keyword

nonn,base

Author

Clark Kimberling

Status

approved