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A102719 a(n) = a(n-1) + (sum of the last three digits of the sequence so far); a(0)=0; a(1)=1; a(2)=2 and a(n) < a(n+1). 1
0, 1, 2, 5, 13, 22, 29, 42, 57, 71, 86, 101, 103, 107, 115, 122, 127, 137, 148, 161, 169, 185, 199, 218, 229, 242, 250, 257, 271, 281, 292, 305, 313, 320, 325, 335, 346, 359, 376, 392, 406, 416, 427, 440, 448, 464, 478, 497, 517, 530, 538, 554, 568, 587, 607 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..10000

EXAMPLE

86+(1+8+6) = 101.

101+(1+0+1) = 103.

103+(1+0+3) = 107.

MAPLE

a:= proc(n) option remember; local k, i; if n<2 then n elif n=2 then b(2):= [2, 1, 0]; 2 else k:= a(n-1) +add (i, i=b(n-1)); b(n):= [convert (k, base, 10)[], b(n-1)[]][1..3]; k fi end: seq (a(n), n=0..80); # Alois P. Heinz, Aug 13 2009

CROSSREFS

Cf. A102039.

Sequence in context: A099982 A298991 A046696 * A075470 A049779 A281906

Adjacent sequences:  A102716 A102717 A102718 * A102720 A102721 A102722

KEYWORD

base,easy,nonn

AUTHOR

Eric Angelini, Feb 06 2005

EXTENSIONS

Corrected and extended by Alois P. Heinz, Aug 13 2009

STATUS

approved

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Last modified July 6 23:56 EDT 2020. Contains 335484 sequences. (Running on oeis4.)