5-infinitary

[y.kohmoto]

    Neil
    I post a sequence related with 5-infinitary.


    %I A000001
    %S A000001 1, 3, 4, 7, 6, 12, 8, 15, 13, 18, 12, 28, 14, 24, 24, 31, 18,
39, 20, 42,
    %T A000001 32, 36, 24, 60, 31, 42, 40, 56, 30, 72, 32, 33, 48, 54, 48,
91, 38, 60, 56, 90
    %N A000001 Sum of 5-infinitary divisors of n.
    %C A000001 If n=Product p_i^r_i and d=Product p_i^s_i, each s_i has a
digit
                     a<=b in its 5-ary expansion everywhere that the
corresponding r_i
                     has a digit b, then d is a 5-infinitary-divisor of n.
    %e A000001 a(32)=a(2^10)=2^10+2^0=32+1=33 , in 5-ary expantion.
                     It is the first term which is different from sigma(n)
    %Y A000001 A097464
    %K A000001 nonn
    %O A000001 1, 2
    %A A000001 Yasutoshi Kohmoto (zbi74583 at boat.zero.ad.jp)

    Yasutoshi