A210015 - OEIS

A210015

In base 4, numbers n which have 4 distinct digits, do not start with 0, and have property that the product (written in base 4) of any two adjacent digits is a substring of n.

%I #10 Jun 10 2016 00:21:00

%S 1203,1230,1302,2013,2031,2103,2130,3012,3021,3102,3120

%N In base 4, numbers n which have 4 distinct digits, do not start with 0, and have property that the product (written in base 4) of any two adjacent digits is a substring of n.

%C Computed by Jean-Paul Davalan.

%C The analog in base 2 is 10; in base 3, 102,120,201,210.

%H Eric Angelini, <a href="http://www.cetteadressecomportecinquantesignes.com/DixChiffres.htm">10 different digits, 9 products</a>

%H E. Angelini, <a href="/A198298/a198298.pdf">10 different digits, 9 products</a> [Cached copy, with permission]

%Y A generalization of A198298. Cf. A210013-A210020, A203569, A203566.

%K nonn,base,fini,full

%O 1,1

%A _N. J. A. Sloane_, Mar 16 2012