A038581 Absolute value of first differences of A038552, divided by 24.

11, 20, 27, 47, 45, 90, 16, 180, 134, 76, 89, 115, 396, 184, 135, 245, 471, 405, 825, 124, 1001, 220, 874, 769, 405, 15, 944, 1671, 1320, 45, 1309, 2410, 1365, 876, 280, 2446, 5460, 1519, 310, 1485, 680, 855, 795, 481, 6440, 3640, 1680, 2416, 155, 6525, 4455, 585, 4459

Offset: 1

Author

Robert Brewer (rbrewerjr(AT)aol.com)

Keywords

• nonn

Links

• Eric Weisstein's World of Mathematics, Class Number

Crossrefs

Cf. A038552.

Formula

a(n) = abs(A038552(n+1)-A038552(n))/24.

Extensions

Corrected and extended by Michel Marcus, Apr 29 2016