

A249047


Selfnumbers (A003052) that are not divisible by 3.


2



1, 5, 7, 20, 31, 53, 64, 86, 97, 110, 121, 143, 154, 176, 187, 209, 211, 233, 244, 266, 277, 299, 310, 323, 334, 356, 367, 389, 400, 413, 424, 446, 457, 479, 490, 512, 514, 536, 547, 569, 580, 602, 613, 626, 637, 659, 670, 692, 703, 716
(list;
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OFFSET

1,2


REFERENCES

D. R. Kaprekar, The Mathematics of the New Self Numbers, Privately printed, 311 Devlali Camp, Devlali, India, 1963.


LINKS



PROG

(Haskell)
a249047 n = a249047_list !! (n1)
a249047_list = filter ((> 0) . flip mod 3) a003052_list


CROSSREFS



KEYWORD

nonn,base


AUTHOR



STATUS

approved



