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A122065 Take sum of squares of digits of previous term. 13
74169, 183, 74, 65, 61, 37, 58, 89, 145, 42, 20, 4, 16, 37, 58, 89, 145, 42, 20, 4, 16, 37, 58, 89, 145, 42, 20, 4, 16, 37, 58, 89, 145, 42, 20, 4, 16, 37, 58, 89, 145, 42, 20, 4, 16, 37, 58, 89, 145, 42, 20, 4, 16, 37, 58, 89, 145, 42, 20, 4, 16, 37, 58, 89, 145, 42, 20, 4 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

From a quiz.

REFERENCES

K. Russell and P. Carter, Number Puzzles, W. Foulsham and Co. Ltd. (1993).

CROSSREFS

Cf. A000216.

Sequence in context: A172949 A172703 A186835 * A079543 A033450 A033448

Adjacent sequences:  A122062 A122063 A122064 * A122066 A122067 A122068

KEYWORD

nonn,base

AUTHOR

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

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Last modified February 14 20:38 EST 2012. Contains 205663 sequences.