A061522 a(0) = 0; a(n) is obtained by incrementing each digit of a(n-1) by 7.

0, 7, 14, 811, 1588, 8121515, 1589812812, 812151615891589, 158981281381215168121516, 812151615891581015898128131589812813, 15898128138121516812158781215161589158108121516158915810

Offset

0,2

Comments

In A061511-A061522, A061746-A061750 when the incremented digit exceeds 9 it is written as a 2-digit string. So 9+1 becomes the 2-digit string 10, etc.

Links

Indranil Ghosh, Table of n, a(n) for n = 0..16

Example

In the sequence 1588 follows 811 because 8+7 = 15 and 1+7 = 8. - Indranil Ghosh, Feb 09 2017

Mathematica

NestList[FromDigits[Flatten[IntegerDigits/@(IntegerDigits[#]+7)]]&, 0, 10] (* Harvey P. Dale, Jun 05 2023 *)

Crossrefs

Sequence in context: A080451 A346534 A369122 * A213151 A225763 A070407

Adjacent sequences: A061519 A061520 A061521 * A061523 A061524 A061525

Keyword

base,nonn

Author

Amarnath Murthy, May 08 2001

Extensions

More terms from Larry Reeves (larryr(AT)acm.org), May 11 2001

Status

approved