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A169820 1 followed by first differences of A169799 3
1, 2, 3, 1, 5, 3, 8, 1, 2, 5, 1, 3, 1, 1, 4, 1, 7, 2, 1, 1, 2, 1, 3, 1, 4, 1, 4, 1, 2, 3, 1, 3, 1, 2, 3, 1, 7, 1, 3, 2, 3, 4, 3, 1, 2, 10, 1, 2, 1, 2, 2, 3, 4, 4, 2, 2, 5, 3, 1, 3, 9, 2, 4, 1, 1, 4, 7, 3, 5, 2, 4, 1, 2, 1, 3, 7, 5, 8, 1, 1, 1, 2, 2, 3, 1, 5, 1, 3, 3, 8, 9, 3, 5, 3, 2, 2, 18, 2, 8, 4 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Essentially the second differences of A167209.

LINKS

Table of n, a(n) for n=1..100.

K. S. Brown, Expulsion Sets

CROSSREFS

Cf. A167209, A169799.

Sequence in context: A111609 A238344 A299072 * A334658 A114711 A246186

Adjacent sequences:  A169817 A169818 A169819 * A169821 A169822 A169823

KEYWORD

nonn

AUTHOR

Entry revised by N. J. A. Sloane, Sep 03 2014

STATUS

approved

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Last modified December 2 09:52 EST 2020. Contains 338876 sequences. (Running on oeis4.)