A165272 First differences of A165271.

1, 3, 4, 8, 10, 16, 21, 26, 34, 39, 48, 50, 60, 60, 65, 65, 65, 62, 56, 52, 40, 32, 18, 8, -8, -18, -32, -40, -52, -56, -62, -65, -65, -65, -60, -60, -50, -48, -39, -34, -26, -21, -16, -10, -8, -4, -3, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0

Offset

0,2

Comments

a(n) = A165271(n+1) - A165271(n);

a(n) > 0 for n < 24;

a(n) < 0 for 24 <= n <= 48;

a(n) = 0 for n > 48.

Links

Table of n, a(n) for n=0..71.

Crossrefs

Cf. A165273.

Sequence in context: A131355 A092534 A005232 * A310010 A294085 A115264

Adjacent sequences: A165269 A165270 A165271 * A165273 A165274 A165275

Keyword

sign

Author

Reinhard Zumkeller, Sep 13 2009

Status

approved