A049832 a(n) = T(n,n) + T(n + 1,n) + ... + T(2n-1,n) = sum over a period of n-th column of array T given by A049828.

0, 1, 4, 7, 15, 18, 31, 40, 50, 61, 88, 87, 119, 136, 151, 170, 210, 225, 270, 273, 307, 342, 411, 396, 448, 501, 532, 563, 649, 626, 727, 750, 810, 875, 908, 923, 1029, 1094, 1159, 1166, 1300, 1275, 1432, 1443, 1491, 1608, 1741, 1698, 1802, 1897, 1974, 2029

Offset

1,3

Links

Table of n, a(n) for n=1..52.

Crossrefs

Cf. A049828.

Sequence in context: A281445 A310926 A310927 * A092309 A263617 A271675

Adjacent sequences: A049829 A049830 A049831 * A049833 A049834 A049835

Keyword

nonn

Author

Clark Kimberling

Extensions

More terms from Sean A. Irvine, Aug 07 2021

Status

approved