A274629 Partial sums of A274628.

1, 5, 12, 25, 40, 66, 91, 130, 170, 224, 273, 352, 415, 503, 591, 703, 796, 936, 1045, 1204, 1346, 1516, 1659, 1883, 2051, 2267, 2469, 2724, 2923, 3227, 3446, 3754, 4022, 4338, 4612, 5016, 5297, 5667, 6005, 6443, 6766, 7250, 7595, 8076, 8509, 8993, 9382, 9993

Offset

1,2

Links

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

Sandie Han, Ariane M. Masuda, Satyanand Singh and Johann Thiel, Orphans in Forests of Linear Fractional Transformations, Electronic Journal of Combinatorics, Vol. 23, No. 3 (2016), Article P3.6.

Crossrefs

Cf. A274628.

Sequence in context: A109624 A081501 A355947 * A082019 A336877 A212058

Adjacent sequences: A274626 A274627 A274628 * A274630 A274631 A274632

Keyword

nonn

Author

N. J. A. Sloane, Jul 07 2016

Extensions

More terms from Eric Rowland, May 26 2018

Status

approved