A286713 Partial sums of A286709.

2, 5, 9, 19, 20, 25, 32, 46, 54, 69, 80, 99, 130, 136, 160, 188, 206, 218, 268, 300, 330, 339, 360, 398, 411, 453, 516, 536, 552, 577, 641, 702, 753, 797, 824, 859, 948, 985, 1072, 1111, 1196, 1237, 1320, 1337, 1444, 1489, 1568, 1597, 1649, 1741, 1816, 1838

Offset: 1

Author

Rémy Sigrist, May 13 2017

Keywords

• nonn
• base

Comments

For any k>0, let bin(k) = the string corresponding to the binary representation of k, and neg(k) = bin(k) under the character substitution '0' <-> '1'; bin(a(n)) contains neg(n) as a substring.

Examples

			a(3) = A286709(1) + A286709(2) + A286709(3) = 2 + 3 + 4 = 9.
		

Links

• Rémy Sigrist, Table of n, a(n) for n = 1..10000
• Rémy Sigrist, Perl program for A286713

Crossrefs

Cf. A286709.