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%I #6 Oct 27 2023 22:00:45
%S 2,1,3,6,7,5,16,10,7,21,22,4,36,11,16,42,31,6,43,22,34,54,40,76,36,26,
%T 66,48,10,108,34,8,23,60,58,48,123,40,10,16,72,106,5,140,24,60,144,56,
%U 16,132,73,61,114,106,172,106,96,126,66,216,53,56,156,127,76,204,44,36
%N First differences of sigma(n) that are positive.
%F a(n) = A053222(A053224(n))
%p with (numtheory): seq( `if`((sigma(i) < sigma(i+1)),(sigma(i+1)-sigma(i)),print( )), i=1..139);
%Y Cf. A000203, A053222, A053227.
%K nonn
%O 1,1
%A _Asher Auel_, Jan 06 2000
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