Proceeding from left to right, between any two consecutive digits (d_i, d_i+1) of an integer k, write down apart the lacking consecutive digits, in increasing order if d_i <d_i+1 or decreasing order if d_i>d_i+1. If abs(d_i - d_i+1) = 0 or 1 no digit is added. Sequence lists integers k that divide such resulting numbers.

A381732

Proceeding from left to right, between any two consecutive digits (d_i, d_i+1) of an integer k, write down apart the lacking consecutive digits, in increasing order if d_i <d_i+1 or decreasing order if d_i>d_i+1. If abs(d_i - d_i+1) = 0 or 1 no digit is added. Sequence lists integers k that divide such resulting numbers.

Terms

    a(0) =27a(1) =737a(2) =909a(3) =1845a(4) =1912a(5) =7078a(6) =27412a(7) =90009a(8) =870129a(9) =990099a(10) =6852899a(11) =9090909a(12) =17388261a(13) =70168376a(14) =70787078a(15) =96096078a(16) =96707298a(17) =162533711a(18) =358006673a(19) =737737737a(20) =1050889491a(21) =2238028254a(22) =3281718034a(23) =4249370147a(24) =9009009009a(25) =11819327599a(26) =12178217823a(27) =13851266943a(28) =18768863945

External references