A044034 Numbers k such that 5 and 9 occur juxtaposed in the base-10 representation of k but not of k+1.

59, 95, 159, 195, 259, 295, 359, 395, 459, 495, 559, 599, 659, 695, 759, 795, 859, 895, 959, 995, 1059, 1095, 1159, 1195, 1259, 1295, 1359, 1395, 1459, 1495, 1559, 1599, 1659, 1695, 1759, 1795, 1859, 1895, 1959, 1995, 2059

Offset

1,1

Links

Table of n, a(n) for n=1..41.

Mathematica

Select[Range[2500], MemberQ[Sort/@Partition[IntegerDigits[#], 2, 1], {5, 9}] && !MemberQ[Sort/@Partition[IntegerDigits[#+1], 2, 1], {5, 9}]&](* Harvey P. Dale, Jun 20 2011 *)

Crossrefs

Sequence in context: A186399 A039431 A043254 * A142152 A112804 A240339

Adjacent sequences: A044031 A044032 A044033 * A044035 A044036 A044037

Keyword

nonn,base

Author

Clark Kimberling

Status

approved