A152233 Similar to A072921 but starting with 4.

4, 8, 20, 34, 55, 86, 131, 181, 241, 308, 386, 481, 589, 719, 866, 1033, 1207, 1391, 1589, 1810, 2041, 2279, 2537, 2812, 3100, 3392, 3701, 4021, 4348, 4694, 5063, 5446, 5848, 6275, 6722, 7186, 7672, 8180, 8705, 9250, 9811, 10391, 10985, 11602, 12229

Offset

1,1

Links

Alois P. Heinz, Table of n, a(n) for n = 1..1000

Maple

b:= proc(n) option remember; local m; m:= a(n); `if`(n=1, 0, b(n-1)); while m>0 do %+ irem(m, 10, 'm') od; % end: a:= proc(n) option remember; `if`(n=1, 4, a(n-1) +b(n-1)) end: seq(a(n), n=1..50);  # Alois P. Heinz, Oct 07 2009

Crossrefs

Sequence in context: A349546 A034733 A365964 * A301896 A053303 A097164

Adjacent sequences: A152230 A152231 A152232 * A152234 A152235 A152236

Keyword

nonn,base,easy

Author

N. J. A. Sloane, Oct 07 2009

Status

approved