1,11

Table of n, a(n) for n=1..87.

N. J. A. Sloane and others, Sequences of RADD type, OEIS wiki.

For records see A118510. Cf. A117831. S_1 is A117230, S_11 is A118512, S_13 is A118513.

Sequence in context: A070646 A094381 A074972 * A022974 A023460 A029926

Adjacent sequences: A118508 A118509 A118510 * A118512 A118513 A118514

nonn,base

N. J. A. Sloane, May 06 2006

approved