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 A034004 Successive decimal digits of triangular numbers. 2
 0, 1, 3, 6, 1, 0, 1, 5, 2, 1, 2, 8, 3, 6, 4, 5, 5, 5, 6, 6, 7, 8, 9, 1, 1, 0, 5, 1, 2, 0, 1, 3, 6, 1, 5, 3, 1, 7, 1, 1, 9, 0, 2, 1, 0, 2, 3, 1, 2, 5, 3, 2, 7, 6, 3, 0, 0, 3, 2, 5, 3, 5, 1, 3, 7, 8, 4, 0, 6, 4, 3, 5, 4, 6, 5, 4, 9, 6, 5, 2, 8, 5, 6, 1, 5, 9, 5, 6, 3, 0, 6, 6, 6, 7, 0, 3, 7, 4, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 REFERENCES Jason Rogers and Jason Earls, 0.1361015212836455566789110512013615..., A Split Novel, Lulu Press, NY, 2006, p. 84. LINKS Michel Marcus, Table of n, a(n) for n = 1..5355 MATHEMATICA Flatten[ IntegerDigits /@ Accumulate@ Range[0, 38]] (* Robert G. Wilson v, Mar 15 2012 *) PROG (PARI) print1(0, ", "); for(n=1, 9, d=digits(n*(n+1)/2); for(i=1, #d, print1(d[i]", "))) \\ Charles R Greathouse IV, Feb 07 2013 CROSSREFS Cf. A000217. Sequence in context: A009014 A009036 A021281 * A329083 A188882 A016660 Adjacent sequences:  A034001 A034002 A034003 * A034005 A034006 A034007 KEYWORD nonn,base,easy AUTHOR STATUS approved

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Last modified August 4 01:48 EDT 2021. Contains 346441 sequences. (Running on oeis4.)