A224759 a(2)=8; thereafter a(n) = smallest number m such that a(n-1)+m = (a(n-1) followed by the leading digit of m).

8, 79, 718, 6468, 58217, 523958, 4715626, 42440638, 381965745, 3437691708, 30939225375, 278453028377, 2506077255395, 22554695298557, 202992257687015, 1826930319183136, 16442372872648225, 147981355853834026, 1331832202684506235, 11986489824160556116, 107878408417445005045, 970905675757005045414, 8738151081813045408734, 78643359736317408678613, 707790237626856678107524, 6370112138641710102967722

Offset

1,1

Comments

The sequence is infinite: a(n) always exists.

For computer programs and examples see A224752.

References

Eric Angelini, Postings to the Sequence Fans Mailing List, Apr 13 2013

Links

Table of n, a(n) for n=1..26.

Eric Angelini, Magic Sums

E. Angelini, Magic Sums [Cached copy, with permission]

Crossrefs

Cf. A224752-A224761.

Sequence in context: A061425 A160605 A353100 * A024102 A034355 A289213

Adjacent sequences: A224756 A224757 A224758 * A224760 A224761 A224762

Keyword

nonn,base

Author

N. J. A. Sloane, Apr 21 2013

Status

approved