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 A055617 a(n)= A*10^(3*n)+B with A=(10^(3*n)-10^n) and B=10^(2*n). 2
 990100, 999900010000, 999999000001000000, 999999990000000100000000, 999999999900000000010000000000, 999999999999000000000001000000000000, 999999999999990000000000000100000000000000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..7. EXAMPLE a(2) = (10^6-10^2)*10^6+10^4 = 999900010000. Note that 999900010000 = 999900^2 + 010000^2 (see A055616). PROG (PARI) a(n) = (10^(3*n)-10^n)*10^(3*n) + 10^(2*n) \\ Michel Marcus, Jul 23 2013 CROSSREFS Subsequence of A055616. Sequence in context: A106782 A154674 A236034 * A055618 A341551 A216276 Adjacent sequences: A055614 A055615 A055616 * A055618 A055619 A055620 KEYWORD nonn,easy AUTHOR Ulrich Schimke (ulrschimke(AT)aol.com) STATUS approved

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Last modified August 10 12:34 EDT 2024. Contains 375056 sequences. (Running on oeis4.)