This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A043038 Base-10 palindromes that starts with 3. 3
 3, 33, 303, 313, 323, 333, 343, 353, 363, 373, 383, 393, 3003, 3113, 3223, 3333, 3443, 3553, 3663, 3773, 3883, 3993, 30003, 30103, 30203, 30303, 30403, 30503, 30603, 30703, 30803, 30903, 31013, 31113, 31213, 31313, 31413, 31513, 31613, 31713, 31813, 31913 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Subsequence of A002113 (palindromic numbers). Union of A222725 (palindromic primes starting with a digit 3) and A222726 (palindromic composite numbers starting with a digit 3). - Jaroslav Krizek, Mar 12 2013 LINKS Jaroslav Krizek, Table of n, a(n) for n = 1..2222 MATHEMATICA okQ[n_]:=Module[{idn=IntegerDigits[n]}, First[idn]==3 && n==FromDigits[Reverse[idn]]]; Select[Range[40000], okQ] (* Harvey P. Dale, Jan 14 2011 *) CROSSREFS Sequence in context: A003129 A190542 A180416 * A274264 A107127 A207323 Adjacent sequences:  A043035 A043036 A043037 * A043039 A043040 A043041 KEYWORD nonn,base AUTHOR STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified October 14 00:10 EDT 2019. Contains 327990 sequences. (Running on oeis4.)