|
%I #2 Mar 30 2012 17:33:53
%S 2,22,272,2772,27172,271172,2718172,27188172,271828172,2718228172,
%T 27182828172,271828828172,2718281828172,27182811828172,
%U 271828181828172,2718281881828172,27182818281828172,271828182281828172
%N Palindromes formed from the reflected decimal expansion of e.
%C e = 2.71828182845904523536028747135... (See A001113).
%C The number of digits of a(n) is equal to n.
%e n ... Successive digits of a(n)
%e 1 ............ ( 2 )
%e 2 ........... ( 2 2 )
%e 3 .......... ( 2 7 2 )
%e 4 ......... ( 2 7 7 2 )
%e 5 ........ ( 2 7 1 7 2 )
%e 6 ....... ( 2 7 1 1 7 2 )
%e 7 ...... ( 2 7 1 8 1 7 2 )
%e 8 ..... ( 2 7 1 8 8 1 7 2 )
%e 9 .... ( 2 7 1 8 2 8 1 7 2 )
%e 10 .. ( 2 7 1 8 2 2 8 1 7 2 )
%Y Cf. A001113, A002113.
%Y Cf. A138068, A138069.
%K base,nonn
%O 1,1
%A _Omar E. Pol_, Mar 01 2008, Mar 28 2008
| 