A230833 - OEIS

%I #8 Oct 31 2013 04:14:58

%S 0,1,9,20,89,177,273,374,485,666,1275,1894,2583,3391,4209,5097,6003,

%T 6919,7905,8906,10017,11708,13589,15550,21559,27678,34377,41266,48235,

%U 56243,64361,73059,81947,90915,99921,109037

%N Sum of the first n strobogrammatic numbers.

%D G. L. Honaker, Jr., Pentagrammic Decryption, unpublished.

%H Wikipedia, <a href="https://en.wikipedia.org/wiki/Strobogrammatic_number">Strobogrammatic number</a>

%e a(10) = 666 because 0+1+8+11+69+88+96+101+111+181 = 666.

%Y Cf. partial sums of A000787.

%K nonn,base,easy

%O 1,3

%A _G. L. Honaker, Jr._, Oct 31 2013