id:A102378 - OEIS Search Results

Search: id:A102378

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a(n) = a(n-1) + a([n/2]) + 1, a(1) = 1.

+0
2

1, 3, 5, 9, 13, 19, 25, 35, 45, 59, 73, 93, 113, 139, 165, 201, 237, 283, 329, 389, 449, 523, 597, 691, 785, 899, 1013, 1153, 1293, 1459, 1625, 1827, 2029, 2267, 2505, 2789, 3073, 3403, 3733, 4123, 4513, 4963, 5413, 5937, 6461, 7059, 7657, 8349 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(n) - a(n-1) = A018819(n+1)` `G.f. A(x) satisfies (1-x)A(x) = 2(1 + x)B(x^2), where B(x) is the gf of A033485`
	CROSSREFS	`Cf. A000123, A033485.` `Sequence in context: A118028 A099392 A080827 this_sequence A118026 A108754 A033499` `Adjacent sequences: A102375 A102376 A102377 this_sequence A102379 A102380 A102381`
	KEYWORD	`nonn`
	AUTHOR	`Mitch Harris (harris (AT) tcs.inf.tu-dresden.de) Jan 05 2005`

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Last modified November 23 17:05 EST 2009. Contains 167421 sequences.

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