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 A138069 Triangle read by rows: row n lists the digits of A135696(n), the palindromic number with odd number of digits formed from the reflected decimal expansion of e. 3
 2, 2, 7, 2, 2, 7, 1, 7, 2, 2, 7, 1, 8, 1, 7, 2, 2, 7, 1, 8, 2, 8, 1, 7, 2, 2, 7, 1, 8, 2, 8, 2, 8, 1, 7, 2, 2, 7, 1, 8, 2, 8, 1, 8, 2, 8, 1, 7, 2, 2, 7, 1, 8, 2, 8, 1, 8, 1, 8, 2, 8, 1, 7, 2, 2, 7, 1, 8, 2, 8, 1, 8, 2, 8, 1, 8, 2, 8, 1, 7, 2 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Also, successive digits of the numbers A135696(n). LINKS Table of n, a(n) for n=1..81. EXAMPLE Triangle begins: .............. 2 ........... 2, 7, 2 ........ 2, 7, 1, 7, 2 ..... 2, 7, 1, 8, 1, 7, 2 .. 2, 7, 1, 8, 2, 8, 1, 7, 2 MATHEMATICA Module[{nn=10, edg}, edg=RealDigits[E, 10, nn][[1]]; Table[ Join[ Take[ edg, n], Reverse[ Take[edg, n-1]]], {n, nn}]]//Flatten (* Harvey P. Dale, Aug 13 2019 *) CROSSREFS Decimal expansion of e: A001113. Cf. A135634, A135696, A138068. Sequence in context: A110779 A121708 A286370 * A208475 A367197 A082837 Adjacent sequences: A138066 A138067 A138068 * A138070 A138071 A138072 KEYWORD easy,nonn,tabf,base AUTHOR Omar E. Pol, Mar 03 2008 STATUS approved

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Last modified June 18 21:09 EDT 2024. Contains 373487 sequences. (Running on oeis4.)