A275915 First differences of A273059.

9, 4, 4, 4, 61, 10, 10, 10, 116, 16, 16, 16, 169, 22, 22, 22, 119, 26, 26, 26, 259, 32, 32, 32, 314, 38, 38, 38, 367, 44, 44, 44, 421, 50, 50, 50, 476, 56, 56, 56, 529, 62, 62, 62, 319, 66, 66, 66, 619, 72, 72, 72, 674, 78, 78, 78, 727, 84, 84, 84, 782, 90, 90, 90, 835, 96, 96, 96, 489, 100

Offset: 0

Author

N. J. A. Sloane, Aug 28 2016

Keywords

• nonn

Links

• Alois P. Heinz, Table of n, a(n) for n = 0..30287 (first 1408 terms from N. J. A. Sloane)
• Alois P. Heinz, Positions of first 1409 1's in plane of A274640
• Zak Seidov, Graph of first differences of A273059.
• Zak Seidov, Spiral A274640 with ones shown.

Crossrefs

Cf. A273059, A274640.