The On-Line Encyclopedia of Integer Sequences (OEIS)

A160646 revision #4

A160646

First differences of sequence A160644.

0, 1, 1, 1, 3, 3, 4, 8, 10, 13, 22, 28, 39, 58

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OFFSET

1,5

COMMENTS

Second differences count a subset of unrestricted partitions; cf. A160648.

LINKS

EXAMPLE

A160644 begins 1 1 2 3 4 7 10 14 22 32 45 67 95 134 192 ...

so a(n) begins 0.1.1.1.3.3..4..8 10 13 22 28 39 .58 ...

CROSSREFS

KEYWORD

easy,nonn

AUTHOR

Alford Arnold (Alford1940(AT)aol.com), May 24 2009

STATUS

approved