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 A067115 Let N = 1357911131517192123252729... = concatenation of odd numbers. Then a(n) = sum of first n digits of N. 0
 1, 4, 9, 16, 25, 26, 27, 28, 31, 32, 37, 38, 45, 46, 55, 57, 58, 60, 63, 65, 70, 72, 79, 81, 90, 93, 94, 97, 100, 103, 108 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS EXAMPLE a(6)= 1+3+5+7+9+1 = 26. CROSSREFS Cf. A067112, A067113, A067114. Sequence in context: A017668 A225004 A074373 * A061077 A292675 A254719 Adjacent sequences:  A067112 A067113 A067114 * A067116 A067117 A067118 KEYWORD easy,nonn,base AUTHOR Amarnath Murthy, Jan 08 2002 STATUS approved

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Last modified December 12 22:06 EST 2019. Contains 329963 sequences. (Running on oeis4.)