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 A102069 Analogous to the oblong (promic or heteromecic) sequence formed but with reversal digits of factors multiplied. 0
 2, 6, 12, 20, 30, 42, 56, 72, 9, 11, 231, 651, 1271, 2091, 3111, 4331, 5751, 7371, 182, 24, 264, 704, 1344, 2184, 3224, 4464, 5904, 7544, 276, 39, 299, 759, 1419, 2279, 3339, 4599, 6059, 7719, 372, 56, 336, 816, 1496, 2376, 3456, 4736, 6216, 7896, 470, 75, 375 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..51. FORMULA a(n) = R(n)*R(n+1), where R(n) is the digital reversal of n. MATHEMATICA r[n_]:=FromDigits[Reverse[IntegerDigits[n]]]; Table[r[n]*r[n+1], {n, 51}] (* James C. McMahon, Jan 07 2024 *) CROSSREFS Cf. A001129, A002378. Sequence in context: A298010 A118373 A077252 * A160938 A160926 A077253 Adjacent sequences: A102066 A102067 A102068 * A102070 A102071 A102072 KEYWORD easy,nonn,base,less AUTHOR Michael Joseph Halm, Feb 12 2005 STATUS approved

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Last modified April 15 05:45 EDT 2024. Contains 371667 sequences. (Running on oeis4.)