A211007 Surface area of the first n faces of the structure mentioned in A211006.

1, 6, 10, 15, 21, 28, 55, 66, 78, 91, 136, 153, 171, 190, 253, 276, 406, 435, 465, 496, 666, 703, 820, 861, 903, 946, 1081, 1128, 1378, 1431, 1711, 1770, 1830, 1891, 2211, 2278, 2485, 2556, 2628, 2701, 3081, 3160, 3403, 3486, 3916, 4005, 4656, 4753, 5050

Offset

1,2

Comments

All members of this sequence are triangular numbers A000217.

It appears that this is the same as A147846 without 3.

Links

Table of n, a(n) for n=1..49.

Crossrefs

Partial sums of A211006.

Cf. A000040, A018252, A000217, A147876, A211005.

Sequence in context: A168102 A333296 A115744 * A315279 A122783 A333747

Adjacent sequences: A211004 A211005 A211006 * A211008 A211009 A211010

Keyword

nonn

Author

Omar E. Pol, Aug 12 2012

Status

approved