A144174 (1=1, 2=2, 3=3, 4=2^2, 5=5, 6=2*3, 7=7, 8=2^3, 9=3^2, 10=2*5, 11=11, 12=2^2*3, 13=13, ..) becomes (1+1+2, 2+3+3, 4+2+2, 5+5+6, 2+3+7, 7+8+2, 3+9+3, 2+10+2, 5+11+11, 12+2+2, 3+13+13, ..).

4, 8, 8, 16, 12, 17, 15, 14, 27, 16, 29, 23, 23, 22, 52, 7, 58, 9, 31, 35, 70, 8, 32, 41, 33, 32, 65, 35, 67, 39, 47, 53, 47, 40, 42, 77, 61, 55, 49, 85, 53, 89, 58, 10, 71, 142, 9, 58, 57, 56, 71, 68, 109, 61, 72, 12, 79, 89, 178, 7, 127, 95, 68, 73, 76, 81, 81, 137, 88, 96

Offset

1,1

Links

Table of n, a(n) for n=1..70.

Example

3+13+13=29=a(11).
14+2+7=23=a(12).
15=3+5=23=a(13).
16+2+4=22=a(14).
17+17+18=52=a(15).
2+3+2=7=a(16).
19+19+20=58=a(17),
etc.

Crossrefs

Cf. A143710, A143711.

Sequence in context: A273779 A114027 A005877 * A256816 A098354 A354455

Adjacent sequences: A144171 A144172 A144173 * A144175 A144176 A144177

Keyword

nonn

Author

Juri-Stepan Gerasimov, Nov 17 2008

Extensions

a(1) and all terms from a(13) on corrected by R. J. Mathar, Apr 29 2010

Status

approved