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.

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

Offset

1,1

Comments

Computed by Jean-Paul Davalan.

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

Links

Table of n, a(n) for n=1..11.

Eric Angelini, 10 different digits, 9 products

E. Angelini, 10 different digits, 9 products [Cached copy, with permission]

Crossrefs

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

Sequence in context: A068534 A252340 A230838 * A259521 A190031 A254694

Adjacent sequences: A210012 A210013 A210014 * A210016 A210017 A210018

Keyword

nonn,base,fini,full

Author

N. J. A. Sloane, Mar 16 2012

Status

approved