A061749 a(0) = 1; a(n) is obtained by incrementing each digit of a(n-1) by 9.

1, 10, 109, 10918, 109181017, 1091810171091016, 1091810171091016109181091015, 1091810171091016109181091015109181017109181091014

Offset: 0

Author

Amarnath Murthy, May 08 2001

Keywords

• base
• nonn

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.

Considering each term as a sequence of digits, this sequence converges to the same limit as A061750, 109181017109101610918109..., fixed point of the operation. - M. F. Hasler, Jun 24 2016

Crossrefs

Cf. A061746 - A061750, A061511 - A061522; A061581 - A061587.

Programs

PARI

A061749(n=1, a=1, m=9)={for(n=1, n, a=eval(concat(apply(t->Str(t+m), digits(a))))); a} \\ If only the 2nd argument is given, then the operation is applied once to that argument. - M. F. Hasler, Jun 24 2016

Extensions

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