A032608 Concatenation of n and n + 3.

14, 25, 36, 47, 58, 69, 710, 811, 912, 1013, 1114, 1215, 1316, 1417, 1518, 1619, 1720, 1821, 1922, 2023, 2124, 2225, 2326, 2427, 2528, 2629, 2730, 2831, 2932, 3033, 3134, 3235, 3336, 3437, 3538, 3639, 3740, 3841, 3942, 4043, 4144, 4245

Offset

1,1

Links

Table of n, a(n) for n=1..42.

Mathematica

Table[FromDigits[Join[IntegerDigits[n], IntegerDigits[n+3]]], {n, 50}] (* Harvey P. Dale, Jul 11 2011 *)
#[[1]]*10^IntegerLength[#[[2]]]+#[[2]]&/@Table[{n, n+3}, {n, 50}] (* Harvey P. Dale, May 21 2018 *)

Crossrefs

Cf. A001704, A020338.

Sequence in context: A061923 A031075 A020227 * A341171 A164403 A164398

Adjacent sequences: A032605 A032606 A032607 * A032609 A032610 A032611

Keyword

nonn,base

Author

Patrick De Geest, May 15 1998

Status

approved