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A085100
Rearrangement of natural numbers such that the sum of n terms beginning with the n-th term is a palindrome. Smallest number not included earlier is given priority.
1
1, 2, 3, 4, 15, 5, 9, 6, 20, 7, 8, 10, 17, 11, 22, 12, 14, 13, 27, 16, 21, 18, 31, 19, 41, 23, 24, 25, 37, 26, 36, 28, 35, 29, 45, 30, 34, 32, 56, 33, 43, 38, 44, 39, 49, 40, 42, 46, 54, 47, 64, 48, 87, 50, 84, 51, 194, 52, 95, 53, 83, 55, 91, 57, 81, 58, 98, 59, 80, 60, 205
OFFSET
0,2
EXAMPLE
1, (2+3), (3+4+15), (4+15+5+9),... etc. are palindromes.
CROSSREFS
Cf. A085101.
Sequence in context: A297840 A102483 A134916 * A337117 A204983 A249623
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Jul 03 2003
EXTENSIONS
More terms from David Wasserman, Jan 26 2005
STATUS
approved