A079664 a(n) = Sum_{i=1..n} LookAndSay(i).

11, 23, 36, 50, 65, 81, 98, 116, 135, 1245, 1266, 2378, 3491, 4605, 5720, 6836, 7953, 9071, 10190, 11400, 12611, 12633, 13846, 15060, 16275, 17491, 18708, 19926, 21145, 22455, 23766, 25078, 25101, 26415, 27730, 29046, 30363, 31681, 33000, 34410

Offset: 1

Author

Joseph L. Pe, Jan 26 2003

Keywords

• base
• nonn
• changed

Comments

A question related to this sequence: prove the convergence or divergence of the infinite series Sum_{i>=1} 1/LookAndSay(i). (Numerical experiments suggest that this diverges slowly.)

Examples

			a(2) = LookAndSay(1) + LookAndSay(2) = 11 (one "1") + 12 (one "2") = 23.
		

Crossrefs

Partial sums of A047842, n>=1.