

A122796


Connell (3,5)sum sequence (partial sums of the (3,5)Connell sequence)


7



1, 3, 8, 16, 27, 41, 58, 76, 97, 121, 148, 178, 211, 247, 286, 328, 373, 421, 470, 522, 577, 635, 696, 760, 827, 897, 970, 1046, 1125, 1207, 1292, 1380, 1471, 1565, 1660, 1758, 1859, 1963, 2070, 2180, 2293, 2409, 2528, 2650, 2775, 2903, 3034, 3168, 3305, 3445, 3588, 3734, 3883, 4035, 4190, 4346, 4505, 4667, 4832, 5000, 5171, 5345, 5522, 5702, 5885, 6071, 6260, 6452, 6647, 6845
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OFFSET

1,2


LINKS

Table of n, a(n) for n=1..70.
Grady D. Bullington, The Connell Sum Sequence, J. Integer Seq. 10 (2007), Article 07.2.6. (includes direct formula for a(n))
Douglas E. Iannucci and Donna MillsTaylor, On Generalizing the Connell Sequence, J. Integer Sequences, Vol. 2, 1999, #99.1.7.


FORMULA

a(n) = (nth triangular number)n+(nth partial sum of A122799).


CROSSREFS

Cf. A045930, A001614, A045928, A045929.
Cf. A122793, A122794, A122795, A122797, A122798, A122799, A122800.
Sequence in context: A211481 A115006 A211480 * A104249 A225253 A254875
Adjacent sequences: A122793 A122794 A122795 * A122797 A122798 A122799


KEYWORD

nonn,easy


AUTHOR

Grady Bullington (bullingt(AT)uwosh.edu), Sep 14 2006


STATUS

approved



