A075649 Right side of the triangle A075652.

1, 4, 9, 19, 28, 44, 64, 87, 112, 150, 192, 215, 264, 344, 415, 461, 494, 648, 721, 779, 841, 970, 1103, 1221, 1318, 1544, 1649, 1483, 1995, 2170, 2291, 2509, 2607, 2876, 3013, 3259, 3620, 3954, 4107, 4381, 4782, 5072, 5325, 5887, 4459, 6390, 6483, 4337

Offset

1,2

Links

Table of n, a(n) for n=1..48.

Formula

a(n) = A075648(n) + n*(n-1). - Andrey Zabolotskiy, Nov 09 2016

Crossrefs

Cf. A075648, A075650, A075651, A075652.

Sequence in context: A147977 A045278 A184723 * A199972 A327753 A100448

Adjacent sequences: A075646 A075647 A075648 * A075650 A075651 A075652

Keyword

nonn

Author

Amarnath Murthy, Oct 01 2002

Extensions

More terms from David Wasserman, Jan 22 2005

New name from Ivan Neretin, Nov 09 2016

Status

approved