login
A218871
Second column of A218869.
1
0, 2, 4, 12, 20, 52, 100, 214, 414, 876, 1722, 3524, 6992, 14144, 28188, 56720, 113180, 227084, 453748, 908804, 1816726, 3636336, 7270770, 14547228, 29090912, 58192994, 116378984, 232780848, 465546796, 931139720, 1862251212, 3724592874, 7449128940, 14898442336, 29796768552
OFFSET
2,2
LINKS
B. Chaffin, J. P. Linderman, N. J. A. Sloane and Allan Wilks, On Curling Numbers of Integer Sequences, arXiv:1212.6102, Dec 25 2012.
B. Chaffin, J. P. Linderman, N. J. A. Sloane and Allan Wilks, On Curling Numbers of Integer Sequences, Journal of Integer Sequences, Vol. 16 (2013), Article 13.4.3.
CROSSREFS
Cf. A218869.
Sequence in context: A335730 A308286 A297184 * A121569 A319213 A099603
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Nov 07 2012
STATUS
approved