A032614 Concatenation of n and n + 9 or {n,n+9}.

110, 211, 312, 413, 514, 615, 716, 817, 918, 1019, 1120, 1221, 1322, 1423, 1524, 1625, 1726, 1827, 1928, 2029, 2130, 2231, 2332, 2433, 2534, 2635, 2736, 2837, 2938, 3039, 3140, 3241, 3342, 3443, 3544, 3645, 3746, 3847, 3948, 4049, 4150, 4251, 4352, 4453, 4554, 4655

Offset

1,1

Links

Table of n, a(n) for n=1..46.

Tanya Khovanova, Non Recursions

Mathematica

a[n_]:=n*10^Floor[Log10[n+9]+1]+n+9; Array[a, 46] (* Stefano Spezia, Sep 04 2023 *)

Crossrefs

Cf. A001704, A020338.

Sequence in context: A146081 A249838 A103652 * A120727 A251230 A264447

Adjacent sequences: A032611 A032612 A032613 * A032615 A032616 A032617

Keyword

nonn,base,easy

Author

Patrick De Geest, May 15 1998

Extensions

a(42)-a(46) from Stefano Spezia, Sep 04 2023

Status

approved