A169757 First differences of A170907.

3, 4, 5, 7, 8, 9, 10, 12, 14, 14, 14, 17, 19, 19, 20, 22, 25, 25, 23, 28, 29, 29, 29, 32, 36, 35, 33, 36, 40, 40, 40, 42, 46, 46, 46, 49, 49, 48, 44, 56, 57, 56, 51, 57, 61, 60, 59, 62, 68, 68, 62, 67, 71, 70, 68, 71, 78, 78, 73, 74, 80, 82, 81, 82, 87, 87, 93, 84, 96, 87, 88, 96, 100

Offset: 0

Author

N. J. A. Sloane, May 06 2010

Keywords

• sign
• look

Comments

a(314) = -59 is the first negative term.

I wish I had a recurrence for this sequence!

Links

• David Applegate, Table of n, a(n) for n = 0..870

Crossrefs

Cf. A170907, A169758.