A218871 Second column of A218869.

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

Author

N. J. A. Sloane, Nov 07 2012

Keywords

• nonn

Links

• John P. Linderman, Table of n, a(n) for n = 2..64
• 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.