A045474 Normalized extreme values for "3x+1" trees of depth n.

4, 8, 14, 24, 42, 76, 138, 254, 470, 876, 1638, 3070, 5766, 10850, 20436, 38550, 72806, 137670, 260612, 493824, 936690, 1778360, 3379372, 6427190, 12232928, 23300652, 44414366, 84713872, 161686324, 308780220

Offset

1,1

References

D. Applegate and J. C. Lagarias, Distribution of 3x+1 trees, Experimental Mathematics 4 (1995),193-209.

Links

Table of n, a(n) for n=1..30.

J. C. Lagarias, The 3x+1 problem and its generalizations, Amer. Math. Monthly, 92 (1985), 3-23.

Index entries for sequences related to 3x+1 (or Collatz) problem

Experimental Mathematics, Home Page

Crossrefs

Cf. A045474-A045476.

Sequence in context: A380411 A060064 A374338 * A131831 A100314 A105143

Adjacent sequences: A045471 A045472 A045473 * A045475 A045476 A045477

Keyword

nonn

Author

N. J. A. Sloane

Status

approved