A032654 Lucky numbers that are concatenations of n with n + 4.

15, 37, 1519, 1923, 2125, 3943, 5559, 6367, 7377, 8589, 99103, 111115, 117121, 135139, 159163, 165169, 201205, 219223, 261265, 267271, 273277, 327331, 333337, 345349, 357361, 369373, 381385, 399403, 423427, 471475, 483487, 495499, 513517

Offset

1,1

Links

Table of n, a(n) for n=1..33.

Crossrefs

Cf. A000959, A032644.

Sequence in context: A051461 A321383 A039605 * A320721 A086096 A272189

Adjacent sequences: A032651 A032652 A032653 * A032655 A032656 A032657

Keyword

nonn,base

Author

Patrick De Geest, May 15 1998

Extensions

More terms from Sascha Kurz, Mar 24 2002

Status

approved