A072482 Partition the nonnegative integers into minimal groups whose sums are palindromes; this sequence gives the sums.

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 33, 222, 646, 44, 606, 484, 131, 949, 161, 595, 9779, 333, 2992, 17171, 262, 3773, 555, 43434, 1221, 4554, 14841, 454, 53235, 51815, 646, 74147, 8338, 90909, 59895, 66266, 477774, 111111, 23832, 713317, 11511, 2293922

Offset

0,3

Comments

Every partial sum of the sequence is of the form m(m+1)/2 for some m.

Links

Table of n, a(n) for n=0..45.

Example

33 is the next term after 9 as 10+11+12 = 33. And the next term is 13 + 14 + 15 + ... + 24 = 222.

Crossrefs

Sequence in context: A357195 A173551 A271534 * A254958 A302502 A257830

Adjacent sequences: A072479 A072480 A072481 * A072483 A072484 A072485

Keyword

base,nonn

Author

Amarnath Murthy, Jul 07 2002

Extensions

More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 25 2003

Status

approved