A226327 - OEIS

A226327

Sum of digits of n equals sum of digits of its antisigma (A024816).

24, 46, 69, 78, 145, 147, 169, 177, 186, 198, 451, 459, 460, 474, 478, 495, 568, 586, 588, 618, 639, 667, 685, 738, 801, 838, 864, 865, 987, 1194, 1198, 1485, 1486, 1495, 1558, 1566, 1639, 1698, 1738, 1878, 1954, 1959, 2295, 2458, 2494, 2538, 2584, 2655, 2656

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Paolo P. Lava, Table of n, a(n) for n = 1..1000

EXAMPLE

For 2584 we have antisigma(2584) = 2584*(2584 + 1)/2 - sigma(2584) = 3334420 and 2 + 5 + 8 + 4 = 3 + 3 + 3 + 4 + 4 + 2 + 0 = 19.

MAPLE

with(numtheory); SA:=proc(t) global v, z; v:=0; z:=t;

while z>0 do v:=v+(z mod 10); z:=trunc(z/10); od; v; end:

A226327:=proc(q) local n; for n from 1 to q do

if SA(n)=SA(n*(n+1)/2-sigma(n)) then print(n);