cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A089493 a(n) = smallest k such that the Reverse and Add! trajectory of A063048(n) joins the trajectory of k.

Original entry on oeis.org

196, 879, 106, 1077, 10553, 111, 1, 10583, 10022, 10071, 10331, 10128, 10210, 10132, 10278, 113, 10746, 10748, 1057, 10122, 10123, 10248, 10337, 10220, 10204, 10212, 10969, 10437, 10983, 10222, 10183, 12898, 128, 10119, 13694, 10036, 10292, 10173
Offset: 1

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Author

Klaus Brockhaus, Nov 04 2003

Keywords

Comments

a(n) <= A063048(n); a(n) = A063048(n) iff the trajectory of A063048(n) does not join the trajectory of any smaller number, i.e. A063048(n) is also a term of A070788.
a(n) determines a 1-1-mapping from the terms of A063048 to the terms of A070788. For the inverse mapping cf. A089494.

Examples

			A063048(3) = 1997, the trajectory of 1997 joins the trajectory of 106 = A070788(8) at 97768, so a(3) = 106. A063048(7) = 10577, the trajectory of 10577 joins the trajectory of 1 = A070788(1) at 7309126, so a(7) = 1.
		

Crossrefs