A122063 a(1) = 17, a(n) = sum of digits of all previous terms.

17, 8, 16, 23, 28, 38, 49, 62, 70, 77, 91, 101, 103, 107, 115, 122, 127, 137, 148, 161, 169, 185, 199, 218, 229, 242, 250, 257, 271, 281, 292, 305, 313, 320, 325, 335, 346, 359, 376, 392, 406, 416, 427, 440, 448, 464, 478, 497, 517, 530, 538, 554, 568, 587

Offset

1,1

Comments

From a quiz.

References

A. Wareham, Test Your Brain Power, Ward Lock Ltd (1995).

Links

Table of n, a(n) for n=1..54.

Mathematica

s={17}; Do[AppendTo[s, Total[Total/@IntegerDigits/@s]], {n, 53}]; s (* James C. McMahon, Oct 25 2024 *)

Crossrefs

Cf. A004207.

Sequence in context: A040275 A355237 A033337 * A083308 A113779 A061049

Adjacent sequences: A122060 A122061 A122062 * A122064 A122065 A122066

Keyword

nonn,base

Author

Herman Jamke (hermanjamke(AT)fastmail.fm), Sep 14 2006

Status

approved