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Numbers not greater than the sum of digits of their squares.
5

%I #10 Jun 20 2021 07:35:19

%S 0,1,2,3,4,5,6,7,8,9,13,14,17

%N Numbers not greater than the sum of digits of their squares.

%e 4 is a term because 4^2 = 16 and 1+6 = 7 >= 4.

%Y Cf. A004159, A055569, A055570, A055571, A055572.

%K base,fini,full,nonn

%O 1,3

%A _Henry Bottomley_, May 26 2000