1,2

Table of n, a(n) for n=1..53.

136 follows 210 as the smallest triangular number not included earlier and differing at every digit position with 210.

Cf. A000217, A068855.

Sequence in context: A306357 A122628 A343386 * A060179 A056411 A068855

Adjacent sequences: A068862 A068863 A068864 * A068866 A068867 A068868

nonn,base

Amarnath Murthy, Mar 13 2002

Corrected and extended by Sascha Kurz, Feb 02 2003

approved